SMS Compliance Resources

Andorra SMS guide covering best practices, compliance, and features. Understand message length rules (160 GSM-7/70 UCS-2 chars), alphanumeric sender IDs, and consent. Explore SMS API integrations (Twilio, Sinch) and sending restrictions; landlines unsupported, error code 21614.

Explore Nepal's SMS landscape: compliance, features, & technical details. Understand sender ID registration, encoding (GSM-7/UCS-2), & two-way SMS limitations. Learn about message concatenation, delivery best practices (8 AM-8 PM UTC+5:45), & API integrations. Avoid error 21614 sending SMS to landlines.

SMS guide for American Samoa: Understand compliance (TCPA, CAN-SPAM), features (concatenated SMS), & sending restrictions. Two-way SMS is unsupported. Use E.164 formatting (+1684). Adhere to UTC-11 time zone. Includes code examples for Twilio, Sinch, MessageBird, Plivo.

A technical guide to UAE SMS: compliance, features, & best practices. Learn about mandatory opt-in, 7 AM-9 PM sending window, & AD-prefixed sender IDs. Discover concatenated message support (160 GSM-7 or 70 UCS-2 chars), content restrictions, and API integration.

Explore Albania SMS: compliance, features, & best practices. Understand GSM-7/UCS-2 encoding, alphanumeric sender IDs, & message length (160/70 chars). Learn about two-way SMS limitations, consent rules (STOP/NDALO), & integration via Twilio, Sinch, MessageBird, Plivo. Essential for A2P messaging.

Explore Cambodia SMS: compliance, features, & best practices. Understand sender ID registration (Smart Axiata requires pre-registration, 14-day provisioning), message encoding (GSM-7/UCS-2), & error codes (400 for landlines). Implement opt-in/opt-out; crucial for A2P SMS.

Explore Finland's SMS landscape: compliance (GDPR, Traficom), features (two-way SMS, concatenation), & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars). Learn about number portability, sender ID rules, plus avoid error 21614 (landlines). API integration examples included.

Explore Armenia SMS: compliance, features, and best practices. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding. Two-way SMS is unsupported. Use E.164 formatting (+374). Learn about alphanumeric sender ID pre-registration (3 weeks) and avoid error code 21614 sending SMS to landlines.

Explore Australia's SMS landscape: compliance (Spam Act 2003), features, & best practices. Learn about alphanumeric sender ID registration (5-day approval), concatenated message limits (160 GSM-7 chars), & handling error code 21614. Essential for developers.

Explore Saint Lucia SMS: compliance (opt-in/opt-out), features (concatenated SMS), & sending best practices. Two-way SMS unsupported. Error 21614 for landlines. Use E.164 format (+1758). Includes Twilio, Sinch, MessageBird, Plivo API integration & rate limits (e.g., Twilio: 250 msg/sec).

Explore Hong Kong SMS: compliance (UEMO, PDPO), features (two-way SMS), & best practices. Supports GSM-7 (160 chars) & UCS-2 (70 chars). Alphanumeric Sender ID pre-registration needed. Includes Twilio, Sinch, MessageBird API integration details.

A technical guide to Kazakhstan SMS: compliance, features & best practices. Understand sender ID registration (3 weeks), +7 number formatting, & time restrictions (9PM-9AM). Learn about message concatenation (160 GSM-7 chars), error codes (21614), plus API integration via Twilio, Sinch, MessageBird, & Plivo.

Explore Austria's SMS landscape: compliance (GDPR/TKG), features (two-way SMS, concatenation), & best practices. Understand opt-in rules, Robinson List checks, & sender ID options. Includes API integration code snippets (Twilio, Sinch) and error handling. Landline SMS unsupported; error code 21614.

Explore Burkina Faso's SMS landscape: compliance (ARCEP), features, & best practices. Understand GSM-7/Unicode encoding (160/70 chars), alphanumeric sender IDs. No 2-way SMS. Avoid error 21614 by not sending to landlines. Includes Twilio, Sinch, MessageBird API integration examples.

Explore SMS best practices in the Cook Islands (CK): This guide covers one-way messaging, encoding (GSM-7/UCS-2), & MMS via URL. Understand consent, opt-out (STOP), & time zone (UTC-10) rules. Includes API code examples and error handling for reliable SMS delivery.

Explore Chile SMS: compliance (DPA, SUBTEL), features & best practices. Understand explicit consent, STOP/AYUDA commands & local time zones (CLT/CLST). Includes long code provisioning (1-2 days), content restrictions & API integration (Twilio, Sinch). Error code 21614 for landlines.

Explore SMS best practices for French Guiana (GF), an overseas region of France. Understand compliance with ARCEP/CNIL, consent rules, & time zone restrictions (GMT-3). Learn about alphanumeric sender IDs, supported encodings (GSM-7/UCS-2), and error code 21614 for landline attempts.

Explore Costa Rica SMS: compliance (SUTEL), features & best practices. No concatenated SMS; MMS converts to SMS w/ URL. Use Spanish. International long codes OK. Adhere to 8 AM-8 PM CST sending window. Avoid 400 errors by not sending to landlines. Opt-out keywords: STOP, CANCELAR, NO.

Explore Gibraltar's SMS landscape: compliance, features, & best practices. Understand GSM-7 (160 chars) & Unicode (70 chars) limits. Learn consent rules aligned with GDPR. Discover API integration via Twilio, Sinch, MessageBird, & Plivo. Master E.164 formatting (+350XXXXXXXX).

Explore SMS capabilities in Antigua & Barbuda: message concatenation (160 GSM-7/70 UCS-2 chars), alphanumeric sender IDs. Understand consent rules per the 2016 Telecom Bill. Learn about long code support, restrictions on gambling content, and error code 21614 for landline SMS attempts.

Explore Bahrain SMS: compliance (TRA, PDPL), features & best practices. Understand consent/opt-in rules, alphanumeric sender IDs, & concatenated message support. Includes code snippets for Twilio, Sinch, MessageBird, & Plivo SMS API integrations. Adhere to 8 AM - 9 PM (GMT+3) sending window.

Explore Djibouti SMS: compliance, features, & best practices. A2P SMS is one-way only. GSM-7 encoding allows 160 chars/segment; UCS-2, 70. Use +253 country code. Includes Twilio, Sinch, MessageBird & Plivo API integration examples, error codes, & rate limits (100 msg/sec).

Explore Equatorial Guinea's SMS landscape: compliance, features, & best practices. Understand GSM-7 (160 chars) & Unicode (70 chars) limits. Learn about consent, STOP commands (BAJA, ARRÊTER), WAT (UTC+1) sending times (8AM-8PM), alphanumeric sender IDs, and error handling for reliable messaging.

Explore Mali SMS: compliance (AMRTP), features, & delivery. Understand GSM-7/UCS-2 encoding, sender ID rules, & message length (160/70 chars). Two-way SMS unsupported. Learn about SMS API integrations (Twilio, Sinch, etc.) & error codes like 21614 for landline errors.

Explore Greece SMS: compliance (EETT, GDPR), features & best practices. Understand alphanumeric sender ID registration, consent rules, & STOP command handling. Includes code snippets for Twilio, Sinch, MessageBird SMS APIs. Adhere to 09:00-20:00 sending window & avoid error 21614 by not sending to landlines.

Explore Aruba SMS: compliance (BTP oversight), features, & best practices. Understand consent/opt-in, alphanumeric sender IDs, & message concatenation rules (153 GSM-7 chars). Includes code snippets for Twilio, Sinch, MessageBird & Plivo SMS API integrations. Two-way SMS is unsupported.

Explore Brazil SMS: compliance (LGPD, ANATEL), features (two-way, concatenated messages—160 chars/segment), & sender types. Understand consent, opt-out ('PARE'), time zones. API integration insights included.

Explore Cameroon SMS: compliance (MINPOSTEL/ART), features, & best practices. Understand alphanumeric sender ID registration (~3 weeks), opt-in, & time zone (UTC+1). Two-way SMS unsupported. Includes Twilio, Sinch API integration examples.

Bhutan SMS guide covering best practices and compliance. Understand sender ID options (alphanumeric supported), content restrictions, and opt-in requirements per BICMA. Explore SMS API integrations: Twilio, Sinch, MessageBird, Plivo. Note: Two-way SMS & MMS are unsupported; landline SMS yields a 400 error.

Explore Netherlands SMS: compliance (GDPR, ACM), features, and best practices. Understand consent (opt-in/opt-out: STOP/STOPPEN), sender IDs, and restricted content. Includes code examples for Twilio, Sinch, MessageBird SMS APIs and error handling. Adherence to 08:00-21:00 CET sending window is crucial.

Explore Ecuador SMS: compliance (ARCOTEL), features & best practices. Understand GSM-7/UCS-2 encoding, sender IDs, & delivery. Two-way SMS unsupported. Use +593 E.164 format. Avoid 400 errors. API integration: Twilio, Sinch, MessageBird, Plivo. Adhere to content restrictions.

Explore Norway SMS: compliance (GDPR, Nkom), features (two-way SMS, concatenation), & best practices. Understand STOP/HELP keywords, number portability, & time restrictions (avoid sending between 20:00-08:00 GMT+1). Includes API integration examples.

A technical guide to Afghanistan SMS: sender ID registration, compliance (ATRA), & message features. Supports GSM-7 (160 chars) & UCS-2 (70 chars) encoding. Includes opt-out keywords (STOP, لغو). Avoid error 21614 by not sending to landlines.

Belarus SMS guide: Understand message features like concatenated SMS (160 GSM-7 chars/segment, 70 UCS-2 chars). Learn compliance: explicit opt-in, STOP/СТОП commands. Includes API integration (Twilio, Sinch) and error handling for reliable messaging to +375 numbers.

A technical guide to SMS in Egypt covering compliance (NTRA), features, and delivery. Understand alphanumeric sender ID registration (~3 weeks), message concatenation (160 GSM-7 chars), and time-of-day restrictions (no marketing 21:00-09:00 GMT+02:00). Includes API integration code snippets and error handling.

Explore Ethiopia SMS: regulations, features, and best practices. Understand sender ID registration, one-way SMS limitations, and character encoding (GSM-7/UCS-2). Implement opt-in/opt-out (STOP/DAGA) and handle 400 error codes (21614 Twilio). Ideal sending window: 8 AM - 8 PM EAT. Max throughput: 10 SMS/second.

Belize SMS guide: Understand SMS features, compliance, & best practices. Supports concatenated SMS (160 GSM-7 or 70 UCS-2 chars). Two-way SMS unsupported. Includes code snippets for Twilio, Sinch, MessageBird, Plivo. Learn about +501 formatting & error handling.

Explore Bulgaria SMS: compliance (GDPR), features, & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding. Two-way SMS unsupported. Includes API integration code (Twilio, Sinch, Plivo) & error handling. Adhere to 9 AM-8 PM EET sending window.

Comoros SMS technical guide: Understand message encoding (GSM-7, UCS-2), sender ID options (alphanumeric, long code), & compliance with ANRTIC regulations. Learn about two-way SMS limitations, delivery best practices, and API integration, including error codes like 4001 (invalid number).

Explore Bermuda (UK) SMS: compliance, features & best practices. Understand GSM-7/UCS-2 encoding, consent (opt-in/opt-out), & sending restrictions. Error 400/21614 details. Learn message length rules (160/70 chars), API integration & AST time zone specifics.

Explore Botswana SMS: regulations, features & best practices. Understand alphanumeric sender IDs, consent rules per BOCRA, & message encoding (GSM-7/UCS-2). Two-way SMS is unsupported. Includes Twilio, Sinch, MessageBird & Plivo API integration code examples. Avoid sending messages between 10 PM - 6 AM.

Explore Burundi's SMS landscape: regulations, features & implementation. Understand consent/opt-in (STOP, ARRET), alphanumeric sender IDs, & message encoding (GSM-7/UCS-2). Learn about time zone restrictions (UTC+2), delivery best practices, and API integrations for reliable messaging.

Explore SMS best practices for the Cayman Islands (KY): compliance (ICT Law 2017), features (concatenated SMS), & limitations (no two-way SMS). Includes number formatting (+1345), consent, alphanumeric sender IDs, plus Twilio/Sinch/Plivo API integration examples and error code handling. Ideal for technical implementers.

Explore Andorra's SMS guidelines, covering technical specs and regulatory compliance. Understand MCC 213, GSM-7 (160 chars), Unicode (70 chars), & message segmentation (max 6). Learn about consent, opt-out, premium SMS (€62.70 base), and Andorra Telecom's network (99.9% urban coverage).

Technical guide to Haiti SMS: Learn A2P messaging, compliance, and features. Two-way SMS is unsupported; use concatenated messages (160 GSM-7/70 UCS-2 chars). Includes CONATEL regulations, opt-in/out (STOP/ARRET/RETE), sender IDs, and API integration (Twilio, Sinch, MessageBird, Plivo).

Explore Cyprus SMS: compliance (GDPR, OECPR), features, & best practices. Learn about alphanumeric sender IDs, Unicode support for Greek, & handling 400 errors. Two-way SMS is unsupported. Includes Twilio, Sinch API integration details.

Explore Kyrgyzstan SMS: compliance (opt-in/out, STOP/СТОП), features (concatenation except Beeline), & sending best practices. Understand GSM-7 vs UCS-2 encoding. Avoid error 21614 by not sending to landlines. Adhere to GMT+6 time zone. API integration examples included.

A technical guide to SMS in Malaysia, covering compliance (PDPA, MCMC), features, and best practices. Understand 2-way SMS, concatenation (160 GSM-7/70 UCS-2 chars), DNC registry rules, and restricted content. Includes API integration code snippets and error handling for optimal delivery.

Explore SMS best practices in New Caledonia (France): compliance (GDPR, ARCEP), features, & restrictions. Two-way SMS unsupported. Use cases: alerts & notifications. Adhere to NCT (UTC+11) & French marketing hours (no SMS 10 PM-8 AM). Error 21614 if sending to landlines. 158 chars

Explore Pakistan's SMS landscape: compliance (PTA), features & best practices. Understand concatenated SMS (GSM-7/UCS-2), sender IDs, & error codes (e.g., 21614). Learn about DNCR, two-way SMS limitations, & API integrations like Twilio, Sinch, MessageBird, Plivo. Focus on consent, timing (UTC+5), & content restrictions.

A technical guide to Qatar SMS: compliance, features, & best practices. Understand mandatory pre-registration for alphanumeric sender IDs, 8 AM-9 PM messaging window (GMT+3), and Unicode support for Arabic. Explore concatenated SMS (160 GSM-7 chars/segment), error codes, and API integrations.

Explore Thailand SMS: compliance (NBTC, PDPA), features & best practices. Understand sender ID registration (2-week approval), UCS-2 encoding for Thai. Avoid 9PM-9AM marketing restrictions. API integration via Twilio, Sinch, MessageBird, Plivo.

Explore Jordan SMS: compliance (TRC), features, & best practices. Learn about alphanumeric sender ID registration (~12 days), consent, & opt-out (STOP/توقف). Sending limits: 100 msg/sec. Includes Twilio, Sinch, MessageBird API integration code examples.

Explore Kuwait SMS: compliance (CITRA, DND), features (concatenated SMS: 160 GSM-7 chars, 70 UCS-2 chars), & sender types (alphanumeric pre-registration). Learn API integration (Twilio, Sinch) & error codes (e.g., 21614). Target Kuwait's mobile messaging.

Explore Monaco SMS: compliance (GDPR, CCIN), features, and best practices. Understand consent, opt-out (STOP/ARRÊTER), & sending windows (8 AM-8 PM CET). Learn about alphanumeric sender IDs, international long codes, plus error codes like Twilio's 21614. Avoid carrier content filters.

Explore Guinea-Bissau SMS: compliance, features & best practices. Understand MCC 632, +245 dialing code, & ARN regulations. No SMS allowed 10 PM-6 AM; max 3/day. Learn about alphanumeric sender ID registration (~3 weeks) & API integration.

Explore Indonesia SMS: compliance (Kominfo, UU PDP), features, & best practices. Understand alphanumeric sender ID registration (~3-4 weeks), consent, & opt-out (STOP/BERHENTI). Includes code examples for Twilio, Sinch, MessageBird, & Plivo SMS APIs. Max 160 chars/segment GSM-7 encoding.

Explore Guernsey SMS: compliance (DPL 2017), features, & best practices. Understand consent rules, STOP commands, & time zone (GMT/BST) considerations. Learn about alphanumeric sender IDs, message concatenation limitations, error code 21614 (landlines), and API integrations.

A technical guide to Bolivia SMS: Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding, plus 2-way SMS. Explore compliance (opt-in, STOP/AYUDA keywords), sender ID options (alphanumeric, shortcodes), & API integrations (Twilio, Sinch). Includes error codes and rate limits.

Explore Honduras SMS: compliance (CONATEL), features & delivery. Two-way SMS unsupported; concatenated SMS & number portability supported. Use +504 country code. Includes code snippets for Twilio, Sinch, MessageBird & Plivo SMS APIs. Adhere to 8 AM-8 PM messaging window (UTC-6).

Explore Jersey SMS: compliance (Data Protection Law 2018), features, and best practices. Supports 2-way SMS, concatenated messages (160 GSM-7/70 UCS-2 chars). Includes code snippets for Twilio, Sinch, MessageBird, Plivo SMS API integrations. Learn about alphanumeric sender IDs and throughput.

Macedonia SMS guide: compliance, features, & best practices. Learn about consent (opt-in/out keywords like 'СТОП'), alphanumeric sender IDs, & message concatenation (160 GSM-7 chars). Avoid error 21614 by not sending to landlines. Understand local time sensitivities (CET/CEST).

Brunei SMS guide covering compliance, features, and best practices. Learn about alphanumeric sender IDs, message concatenation (160 GSM-7/70 UCS-2 chars), and AITI regulations. Includes opt-in (2yr min record), regulated hours (8AM-8PM UTC+8), plus Twilio/Sinch/MessageBird API integration.

Explore Guam SMS: compliance (TCPA), features & best practices. Understand consent, STOP commands (English/Chamorro), & sending windows (UTC+10). Includes API integration (Twilio) & error codes.

Explore Italy SMS: compliance (AGCOM, GDPR), features, & delivery. Understand consent rules, STOP commands, & time restrictions (10 PM-8 AM prohibited). Includes API integration (Twilio, Sinch), error codes (400), & number portability. Ideal for developers needing Italian SMS.

Explore Japan SMS: compliance, features, & best practices. Understand regulations from MIC/PPC, consent (opt-in/opt-out - 停止/STOP), & sending windows (9AM-8PM JST). Includes carrier rules (KDDI 5 segments max) and API integration (Twilio, Sinch, MessageBird, Plivo) examples.

Explore SMS capabilities in Norfolk Island: compliance (ACMA), features & limitations. Two-way SMS & concatenated messages unsupported. Use GSM-7 (160 chars) or Unicode (70 chars). Includes code examples for Twilio, Sinch, MessageBird SMS APIs. Adherence to UTC+11:00 timezone required.

Explore Poland SMS: compliance (GDPR, UKE), features (two-way SMS, concatenation using GSM-7/UCS-2), & best practices. Avoid 400 errors sending to landlines. STOP/HELP keywords required. Alphanumeric sender IDs supported; long codes are too. See Twilio/Sinch/MessageBird/Plivo API examples.

Explore Spain SMS: compliance (AEPD/CNMC), features & best practices. Understand consent rules, STOP/ALTO keywords, & Lista Robinson. GSM-7 (160 chars) vs UCS-2. Avoid error 21614. Includes Plivo, Twilio, Sinch API code & rate limits (e.g. Twilio: 100 msg/sec).

SMS guide for Guyana: Understand GSM-7/UCS-2 encoding, sender ID options & compliance (Telecommunications Act). Implement one-way SMS for notifications. MMS converts to SMS w/URL. Error 400 code 21614 for landlines. API integration: Twilio, Sinch, MessageBird. 250/30/60 msg/sec rate limits.

Explore Canada SMS: compliance (CASL, CRTC), features, & best practices. Understand consent, STOP/HELP keywords, & time zone rules. Includes message length (GSM 3.38: 136 chars), MMS (1MB limit), plus Twilio, Sinch, MessageBird, & Plivo API integration examples. Target reliable SMS strategies.

Explore Ivory Coast SMS: compliance (ARTCI), features, & best practices. Understand 10-digit numbers, GSM-7/UCS-2 encoding, & alphanumeric sender ID registration (~3 weeks). Learn 2FA, concatenated message support, plus Twilio, Sinch & MessageBird API integration details.

Explore SMS best practices in Martinique (MQ): France's overseas territory. Understand GSM-7 encoding, compliance with ARCEP/CNIL, and message length limits. Two-way SMS is unsupported. Adhere to 8 AM-10 PM AST sending window; STOP/ARRETER required for opt-outs. Error code 21614 indicates landline SMS failure.

Switzerland SMS guide: compliance, features & best practices. Understand consent (explicit opt-in required), STOP commands (STOPP/ARRÊT/STOP), & number portability. Avoid error 21614 (landlines). Supports concatenated SMS (153 GSM-7 chars/segment, 67 UCS-2). API integration details included.

Explore Lebanon SMS: compliance (TRA), features, & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding. Alphanumeric sender IDs supported. Error 21614 on landlines. API integration: Twilio, Sinch, MessageBird. Rate limit: 30 msg/sec. STOP/توقف commands required.

Explore Macao SMS: compliance, features, & best practices. Understand concatenated SMS (160 GSM-7/70 UCS-2 chars), alphanumeric sender IDs, & China Standard Time (UTC+8). Learn opt-in/out, restricted content, & API integration via Twilio (+853 E.164 format), Sinch, MessageBird, & Plivo.

Explore Colombia SMS: compliance (Law 1581), features & best practices. Understand consent, opt-out (STOP/CANCELAR), & time zone (UTC-5) rules. Includes API integration (Twilio, Sinch), plus error codes (400 for landlines) & throughput rates (e.g. Twilio: 100 msg/sec). Target high SMS delivery.

A technical guide to SMS in South Sudan covering compliance, features & best practices. Understand one-way messaging, encoding (GSM-7, UCS-2), & int'l long codes. Learn sender ID pre-registration, content restrictions (P2P, adult), & error handling for reliable SMS delivery (+211).

Explore Luxembourg SMS: compliance (GDPR, CNPD), features, & best practices. Understand alphanumeric sender IDs, int'l long codes, & message encoding (GSM-7/UCS-2). Learn about consent (explicit opt-in), restricted content, and error codes (4xx/5xx). Sending window: 08:00-20:00 CET.

Explore Morocco SMS: compliance (Law 09-08), features & best practices. Two-way SMS is unsupported; concatenation is OK (160 GSM-7 chars). Use Alphanumeric Sender IDs (3-week preregistration). Avoid gambling content. API integration: Twilio, Sinch, MessageBird, Plivo. Sending hours: 9AM-8PM GMT+1.

Explore Namibia SMS: compliance (Communications Act 8 of 2009), features & best practices. Learn concatenated message rules (160 GSM-7/70 UCS-2 chars). Discover API integrations (Twilio, Sinch, Bird), error codes, plus handling failed landline deliveries (error 21614).

Explore Liechtenstein SMS: compliance (GDPR, E-Privacy), features (concatenated SMS), & best practices. Understand +423 number formatting, consent, & opt-out. API integration: Twilio, Sinch, Bird. Avoid error 400 (21614) sending to landlines. Adhere to 08:00-20:00 CET sending window.

Explore Moldova SMS: compliance (consent, opt-out), features (alphanumeric sender IDs), & best practices. Understand message length (GSM-7: 160 chars, UCS-2: 70). Includes API code for Twilio, Sinch, MessageBird, Plivo, plus rate limits.

A technical guide to Nigeria SMS: Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding, alphanumeric sender ID registration (2-3 weeks), & DND compliance. Includes API code snippets for Twilio, Sinch, MessageBird, Plivo. Avoid error code 21614 (invalid number) & support STOP to 2442.

Explore Panama SMS: compliance (Law No. 31), features & best practices. Two-way SMS unsupported. Use UCS-2 encoding for special chars. Follow ET/UTC-5 timezone. Opt-outs via PARA/AYUDA. International long codes supported. Avoid political/gambling content. API integrations: Twilio (250 msg/sec), Sinch (100 msg/sec).

Explore SMS best practices in Réunion (France), covering compliance with ARCEP/CNIL regulations. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding, plus opt-in/opt-out (STOP/ARRÊT). Learn about alphanumeric sender IDs, restricted content, and integrating Twilio/Sinch/Plivo APIs.

SMS guide for Micronesia: Understand message features, compliance, & delivery. No 2-way SMS; MMS converts to URLs. Use E.164 (+691) format. Avoid error 21614. Long codes supported.

Explore New Zealand's SMS ecosystem: compliance (Unsolicited Electronic Messages Act 2007), short codes (5-6 week provisioning), & message features. Understand 2-way SMS, concatenation rules (160 GSM-7 chars), plus API integration (Twilio, Sinch). Avoid error 21614 sending to landlines.

Explore Mozambique SMS: regulations, features & best practices. Understand alphanumeric sender ID pre-registration for Movitel. Learn opt-in/out compliance (STOP/PARAR). Discover 2-way SMS limitations & MMS to SMS conversion. Time zone: EAT (UTC+2).

Explore Montserrat's SMS landscape: country code 354, dialing code +1664. Understand SMS features, compliance (UK GDPR), & sender ID options. Two-way SMS & concatenated messages are unsupported. MMS converts to SMS w/ URL. Includes Twilio, Sinch API integration examples.

Explore Niger's SMS landscape: message length (160 GSM-7/70 Unicode chars), one-way SMS, and no MMS. Compliance mandates explicit opt-in. Numbers use +227 prefix. Learn sender ID rules, content restrictions, and API integration for Twilio, Sinch, MessageBird, Plivo. Ideal for developers.

Explore Peru SMS: compliance (PDPL, OSIPTEL), features & best practices. Two-way SMS not supported. Concatenated messages use GSM-7 (160 chars) or UCS-2 (70 chars). Includes Twilio, Sinch, MessageBird & Plivo API integration code & rate limits (e.g. Twilio: 250 msg/sec).

A technical guide to SMS in the Republic of the Congo (CG): Understand GSM-7/UCS-2 encoding, one-way messaging, and +242 number formatting. Learn about alphanumeric sender ID registration (~3 weeks), consent rules (STOP/ARRET), and error code 21614 for landlines. Ideal for developers integrating SMS APIs.

Explore SMS capabilities in Sao Tome and Principe: message segmentation, encoding (GSM-7/UCS-2), & MMS fallback. Understand compliance: consent, opt-out (STOP). No DNC registry. Use int'l long codes; short codes unsupported. Avoid error 21614 (invalid numbers). Adhere to GMT+0.

A technical guide to Tajikistan SMS: GSM-7 & UCS-2 encoding, alphanumeric sender ID registration, and compliance with Communications Service regulations. Learn about required STOP/CANCEL keywords in Latin/Cyrillic scripts, local time zone (UTC+5) considerations, and A2P SMS delivery via direct carrier connections.

Explore UK SMS: compliance (GDPR/PECR), features, & best practices. Learn about explicit consent, STOP keywords, TPS screening, & optimal sending times (8AM-8PM). Includes concatenated message details (160 GSM-7 chars), number portability, plus API integration (Twilio, Sinch).

Niue SMS guide: Learn best practices, compliance for sending SMS to +683 country code. Understand two-way SMS limitations, sender ID options, & content restrictions. Discover SMS API integrations like Twilio, Sinch, MessageBird, Plivo. Ensure message delivery; avoid 400 errors.

Explore Samoa SMS: compliance (Telecommunications Act 2005), features, & delivery. Two-way SMS & concatenated messages unsupported. Use GSM-7 encoding. Includes API integration (Twilio, Sinch, etc.) & error handling for +685 numbers. Ideal messaging window: 8 AM-8 PM WST.

Explore Slovakia's SMS landscape: compliance (GDPR, opt-in), features (concatenated SMS up to 153 GSM-7 chars), & sending best practices. Understand alphanumeric sender IDs, number portability, and restrictions like no landline SMS. Includes Twilio, Sinch, MessageBird & Plivo API integration examples.

Explore SMS best practices for St Pierre & Miquelon (PM): Understand compliance (ARCEP/GDPR), GSM-7 encoding (160 chars), and two-way SMS limitations. Includes +508 dialing code. Learn about STOP/ARRÊT commands, number portability, and integrating APIs like Twilio & Sinch. Avoid error 21614.

Technical guide to Philippines SMS: compliance, features, & delivery. Understand consent (explicit opt-in, STOP/HELP), sender ID registration (Q1 2025 deadline), and encoding (GSM-7/UCS-2). Includes API integration (Twilio, Sinch) and error code details (e.g., 21614).

Explore Palau SMS: country code 429, dialing code +680. Learn SMS features (concatenated messages supported), compliance, & sender ID options. No 2-way SMS. Avoid error 21614 by not sending to landlines. Use E.164 format (+680XXXXXXX) for reliable delivery.

Explore SMS best practices for Solomon Islands: compliance (opt-in, STOP commands), features (concatenated SMS with 160/70 char limits), & sender ID options. Includes code examples for Twilio, Sinch, MessageBird, Plivo, plus error handling & API rate limits.

Explore SMS best practices in Trinidad & Tobago: compliance (Telecommunications Act 2001), features, & API integration. Two-way SMS & concatenation unsupported. Use +1868 prefix. Alphanumeric sender IDs partially supported; long codes are ideal. Adhere to 8 AM-8 PM AST sending window. Twilio's default rate is 250 messages/second.

Explore Vietnam's SMS landscape: compliance, features, & delivery. Understand stringent regulations requiring pre-registered Sender IDs and brand name inclusion. Learn about GSM-7 vs UCS-2 encoding (70 chars). Discover API integration (Twilio, Sinch, Bird) & error codes like 400 for content violations.

Explore Senegal SMS: compliance (ARTP), features, & best practices. Understand consent, time restrictions (10PM-6AM), & French/Wolof support. Alphanumeric Sender IDs supported. No two-way SMS or concatenation. MMS converts to SMS w/ URL. Error code 21614 for landlines.

Explore Sudan's SMS landscape: regulations, features & best practices. Understand alphanumeric sender ID pre-registration (3 weeks), content restrictions (no P2P), & +249 formatting. Implement opt-out via STOP commands & handle 400 errors (code 21614) for landlines. Optimize SMS delivery now!

Tonga SMS guide: Learn compliance (Communications Act 2015), best practices, and features. Two-way SMS & concatenated messages unsupported. Use int'l long codes. Alphanumeric Sender IDs supported. Adhere to UTC+13 timezone; send between 8 AM-8 PM. Error code 21614 for landlines.

Explore Ukraine SMS: compliance (Law "On Electronic Communications"), features, & best practices. Learn about alphanumeric sender IDs, consent, & Cyrillic support. Two-way SMS limitations? Landline delivery failures (error 21614)? Get the answers here.

Technical guide to SMS in Syria, covering compliance, features, and delivery. Understand allowed use cases (OTP, banking), overwritten sender IDs, and message encoding (GSM-7, UCS-2). Learn about international long code support, error codes (e.g., Twilio 21614), and API integration for reliable transactional messaging.

Swaziland SMS guide: compliance, features, & best practices. Learn alphanumeric sender ID pre-registration (3 week process), & opt-in/opt-out (24hr). Two-way SMS & concatenation unsupported. Adhere to SAST (UTC+2) for optimal delivery.

Togo SMS guide: Learn message features, compliance for SMS broadcasts. Supports GSM-7 (160 chars) & UCS-2 (70 chars) encodings. Two-way SMS unsupported. Adhere to ARCEP guidelines; obtain explicit opt-in. Use +228 country code. Ideal for alerts. Explore Twilio, Sinch, MessageBird & Plivo APIs.

Explore Mexico SMS: compliance (IFT, INAI, REPEP), features & best practices. Supports two-way SMS, concatenated messages (160 GSM-7 chars/segment). Avoid sending between 9PM-9AM. Includes Twilio, Sinch, MessageBird & Plivo API integration examples.

Explore SMS best practices for St. Kitts & Nevis: Understand compliance (Electronic Communications Act), supported features, & message guidelines. No two-way SMS or concatenation. Use E.164 format (+1869). Alphanumeric Sender IDs supported. Twilio message pricing: $0.1509. Avoid 400 errors.

Explore Tuvalu SMS: compliance, features, & delivery. Understand MCC 553, dialing code +688, & SMS limitations. Learn about concatenated SMS (160 GSM-7 chars), error codes (400), and API integrations. Essential for developers targeting Tuvalu's mobile market.

Explore Kosovo SMS: compliance, features & best practices. Understand GSM-7/UCS-2 encoding, alphanumeric sender IDs, & error codes like Twilio's 21614. Includes API integration (Twilio, Sinch) & rate limits (e.g., Twilio: 100 msg/sec). Learn opt-in/opt-out (STOP, NDALO) & time zone rules.

Explore Zimbabwe SMS: compliance (POTRAZ), features & best practices. Two-way SMS unsupported. Use alphanumeric sender IDs. Adhere to 160-char limit (GSM-7). DND compliance is crucial. Integrates Twilio, Sinch, MessageBird APIs. Send between 8 AM-8 PM CAT. Max 100 msg/sec. +263 country code.

Explore Timor-Leste SMS: compliance, features, and delivery. Understand alphanumeric sender ID registration (2 weeks), no 2-way SMS, and MMS to SMS URL conversion. Includes opt-in, restricted content, and API integration (Twilio, Sinch). Ideal message timing: 9 AM-8 PM TLT (UTC+9). Error code 21614 for landlines.

Explore Barbados SMS: compliance (Mobile Telecommunications Code 2023), features, & best practices. Learn consent rules, sender ID options, & restricted content. Includes API integration examples like Twilio, Sinch, MessageBird & Plivo. Supports GSM-7 (160 chars) & UCS-2 (70 chars) encoding.

Explore Palestine SMS: compliance, features & best practices. Understand GSM-7 (160 chars/segment), UCS-2 (70 chars/segment). Two-way SMS unsupported. Includes opt-in/out, alphanumeric sender IDs, plus Twilio/Sinch/Plivo API integration examples.

Yemen SMS guide: Learn SMS technical specifics, compliance, and best practices. Understand GSM-7/UCS-2 encoding, alphanumeric sender ID registration for TeleYemen (MCC 421), and handling error code 21614 for landline sends. Implement STOP/HELP commands for opt-outs and integrate Twilio/Sinch SMS APIs.

Explore Zambia's SMS landscape: compliance (ZICTA), features & best practices. Understand alphanumeric sender ID registration (~3 weeks), and CAT time zones (UTC+2). Learn message encoding (GSM-7, UCS-2), consent, and API integrations. Note: Two-way SMS & concatenated messages unsupported.

DRC SMS guide: compliance, features, & best practices. Understand consent (explicit opt-in required), STOP/HELP commands (French & local languages), & sender IDs. Includes code snippets for Twilio, Sinch, MessageBird, & Plivo. Number portability is unavailable; landline SMS yields error 21614.

Explore Chad SMS: compliance (ARCEP), features & best practices. No 2-way SMS/concatenated msgs. Use GSM-7 (160 chars) or UCS-2 (70 chars). +235 country code. Incl. Twilio/Sinch/Plivo API code. STOP cmds req'd.

Explore Iceland SMS: compliance, features & best practices. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding. Learn opt-in/out (STOPP, HJÁLP) & sender ID rules. Includes API integration: Twilio, Sinch, MessageBird, Plivo & error code 21614 details.

Laos SMS guide: navigate A2P messaging. Understand GSM-7 (160 chars) & Unicode (70 chars) limits, sender ID registration (Unitel), & error codes (400). No 2-way SMS. Use +856 prefix. Implement opt-out keywords (STOP). Avoid gambling content. API rate limit: 30/second.

A technical guide to SMS in Sri Lanka covering compliance, features, and best practices. Learn about alphanumeric sender ID registration (~3 weeks), GSM-7 (160 chars) & UCS-2 (70 chars) encoding. Includes two-way SMS limitations, TRCSL guidelines, plus Twilio, Sinch, MessageBird & Plivo API integration examples.

Explore Azerbaijan SMS: compliance, features & best practices. Understand alphanumeric sender IDs, consent rules (2yr retention), & opt-out cmds (STOP, DAYANDIR). Learn concatenated msg limits: 918 chars GSM-7 or 201 UCS-2. Review API integration & error handling for reliable SMS.

Explore San Marino SMS: compliance (GDPR-aligned Law No. 171), features, & delivery. Understand consent, opt-out (STOP/ANNULLA), & 8 AM-8 PM CET time restrictions. No short codes; 160-char limit. Error 21614 for landlines.

Explore Lithuania SMS: compliance (GDPR, RRT), features & best practices. Understand consent (STOP, SUSTABDYTI), alphanumeric IDs (max 11 chars), and EET sending times. Integrates Twilio, Sinch, Bird; includes code snippets & error handling. Target 160 GSM-7 chars or 70 UCS-2 chars.

Explore China SMS: compliance, features & delivery. Understand strict regulations, consent (opt-in), & content rules. Two-way SMS unsupported. Max length: 500 chars/8 segments. Learn about error code 21614 (invalid number), time restrictions (8 AM-9 PM), & Chinese SMS APIs.

Faroe Islands SMS guide covering best practices and compliance. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding, plus MMS to URL conversion. Learn about alphanumeric sender IDs, error code 21614 (landlines), consent, & message concatenation. Includes Twilio, Sinch, MessageBird, Plivo API examples.

Anguilla SMS guide: Understand message features, compliance, & sending best practices. Two-way SMS is unsupported; concatenated messages use GSM-7 (160 chars) or UCS-2 (70 chars). Adhere to AST (UTC-4) for optimal delivery & implement HELP/STOP keywords for opt-out. Explore SMS API integrations.

Explore Malta SMS: compliance (GDPR, MCA), features & best practices. Understand alphanumeric sender IDs, concatenated SMS (160 GSM-7/70 UCS-2 chars), & error codes. Includes Twilio, Sinch, MessageBird & Plivo API integration examples. Two-way SMS not supported.

This guide details 10DLC SMS registration, covering TCR brand/campaign vetting and MNO compliance. Learn about brand vetting scores (0-100), use cases like 2FA, and Authentication+. Essential for A2P messaging compliance and improved deliverability. Understand TCPA rules and MNO tier assignments.

Explore SMS best practices for the British Virgin Islands (VG, MCC 348). Learn about 2-way SMS limitations, concatenated message support (160 GSM-7/70 UCS-2 chars), and number portability. Understand consent rules, sender ID options (alphanumeric supported), restricted content, and API integrations (Twilio, Sinch).

Explore Kenya SMS: compliance (Data Protection Act 2019), features, & best practices. Understand consent, opt-out (STOP, ONDOKA), & sender ID rules. Includes API integration code snippets & error codes (e.g., 21614). Time zone: 8 AM - 8 PM EAT.

CAR SMS guide: Understand SMS sending, compliance (Law 18.002), & features. Supports concatenated SMS (160 chars GSM-7, 70 UCS-2). Two-way SMS unsupported. Includes Twilio, Sinch, MessageBird API integration code & error handling. Avoid 400 errors (code 21614) sending to landlines.

Explore El Salvador SMS: compliance (SIGET), features & best practices. Two-way SMS unsupported. Adhere to CST (GMT-6) sending hours, respect opt-outs (STOP/AYUDA). Includes code examples (Twilio, Sinch) & API rate limits (e.g. Twilio: 250 msg/sec). Avoid error 21614.

Eritrea SMS guide: Understand SMS features, compliance, and sending best practices. Learn about message concatenation, encoding (GSM-7/UCS-2), and error code 21614. Includes API integration examples and rate limit details for reliable messaging to +291 country code.

Explore Gambia SMS: compliance (PURA, DND registry, 8 AM-8 PM restrictions), best practices, & technical features. Alphanumeric sender IDs are supported. No two-way SMS. Error codes like 4001 (invalid number) covered. Includes Twilio, Sinch API integration examples.

Explore Paraguay SMS: compliance (Law No. 6534/2020), features, & best practices. Understand GSM-7/Unicode encoding, sender ID rules, & CONATEL regulations. Two-way SMS is unsupported. Learn opt-in/opt-out (STOP, PARAR, BASTA, ANICHÉMA) & API integration.

Explore Somalia SMS: character limits (160 GSM-7, 70 UCS-2), alphanumeric sender ID support, and domestic long code availability. Understand compliance, EAT (UTC+3) timing, plus Twilio, Sinch API integration. Two-way SMS & MMS limitations explained. Learn best practices for reliable delivery.

Libya SMS guide covering best practices and compliance. Understand GSM-7/UCS-2 encoding, alphanumeric sender IDs, & handling 400 error codes. Learn about message concatenation, supported encodings for Arabic, & workarounds for MMS limitations. Essential for developers integrating SMS APIs.

Explore Uzbekistan SMS: compliance (UzACI), features & best practices. Understand GSM-7/UCS-2 encoding, consent mandates, & opt-out (STOP) protocols. Includes API integration (Twilio, Sinch, Plivo), error handling & rate limits (e.g. Twilio: 100 msg/sec). Number portability: No.

Explore SMS best practices in Montenegro: Understand regulations like LPPI, consent requirements, and handling opt-outs within 24 hours. Note: two-way SMS & concatenated messages unsupported. Use E.164 formatting (+382 country code). Review carrier content filters & API integrations (Twilio, Sinch, Bird).

Explore SMS best practices in Papua New Guinea, including compliance (NICTA/ICCC), encoding (GSM-7), and delivery. Understand 2-way SMS limitations, number formats (+675), and error codes (21614). Learn API integration for Twilio, Sinch, MessageBird, Plivo, and rate limits for optimal throughput.

Explore Venezuela SMS: compliance (CONATEL), features & delivery. Two-way SMS & concatenated messages unsupported. Alphanumeric Sender ID pre-registration needed for Digitel. Use E.164 formatting (+58). Includes Twilio, Sinch, MessageBird & Plivo API integration examples.

Explore Serbia SMS: compliance (opt-in, STOP commands), features (concatenated SMS with 160/70 char limits), & sender types (alphanumeric IDs). Includes error codes, plus Twilio, Sinch & MessageBird API code examples. Number portability is unavailable; landline SMS yields error 21614.

Explore Sweden's SMS landscape: compliance (GDPR, PTS, IMY), features (two-way SMS, concatenation supporting 160 GSM-7/70 UCS-2 chars), & sender ID options. Includes code snippets for Twilio, Sinch, MessageBird, plus rate limiting strategies.

Explore Romania's SMS landscape: compliance (ANCOM, GDPR), features & delivery. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding. Alphanumeric sender ID pre-registration details. Avoid error 21614 (landline SMS). Review Twilio, Sinch, MessageBird API integration.

Technical guide to Tanzania SMS: compliance, features, & APIs. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding, sender ID pre-registration (3-4 weeks), & error codes. Explore Twilio, Sinch & Bird API integration for TZ (+255).

A technical guide to SMS in Tunisia covering compliance, features, and best practices. Understand alphanumeric sender ID registration (~18 days), GSM-7 (160 chars) vs UCS-2 (70 chars) encoding. Learn about two-way SMS limitations, MMS conversion to URLs, plus API integrations.

Lesotho SMS guide: Understand mobile codes (MCC 651, +266), compliance (LCA), & message features. Two-way SMS unsupported. Use international long codes. Adhere to SAST (UTC+2) timing. Avoid gambling/adult content. API integration details included.

Nicaragua SMS guide: Understand SMS features, compliance (TELCOR), & best practices. Two-way SMS is unsupported; use one-way. GSM-7 encoding is preferred. Implement HELP/STOP. Numbers use +505. Twilio, Sinch, MessageBird, Plivo API integration details. Sending window: 8 AM-8 PM UTC-6.

Explore Georgia SMS: compliance (GNCC), features & best practices. Understand message length (160 GSM-7/70 Unicode), consent, & opt-out (STOP/შეწყვეტა). Includes API integration: Twilio, Sinch, MessageBird, Plivo & error codes (e.g., 21614). Learn alphanumeric sender ID rules.

Explore Gabon SMS: compliance (ARCEP), features & delivery. Understand alphanumeric sender IDs, +241 formatting, & message concatenation. Review SMS API integration: Twilio, Sinch. Learn restricted content rules & best practices for 160-char SMS; respect UTC+1 timezone.

Explore Grenada SMS: compliance (opt-in/opt-out), features, & best practices. Understand GSM-7 (160 chars) & UCS-2 encoding. No 2-way SMS or MMS; error 21614 for landlines. Use Twilio, Sinch, MessageBird APIs. Follow AST (UTC-4) timing. Ideal for technical users needing Grenada SMS details.

Explore Greenland's SMS landscape: compliance, features & APIs. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding. A2P two-way SMS is unsupported. Comply with GDPR; use alphanumeric sender IDs. Discover SMS API integrations with Twilio, Sinch, MessageBird, and Plivo.

Explore Guinea SMS: compliance (ARPT), features & best practices. Understand SMS limitations, sender ID pre-registration, & error codes (e.g., 21614). Includes code snippets for Twilio, Sinch, & MessageBird SMS API integration. Optimize SMS strategy for Guinea's mobile networks.

Explore Ghana SMS: compliance, features, and best practices. Understand alphanumeric sender ID registration (2-3 weeks), consent rules, and message length (160 GSM-7). Learn two-way SMS limitations, error codes (400 error 21614), plus API integration via Twilio, Sinch, MessageBird, Plivo.

Explore Croatia's SMS landscape: compliance (Electronic Communications Act & GDPR), features, & best practices. Understand consent, STOP commands, & sender IDs. Learn about 400 error code 21614 (landlines), message concatenation (160 GSM-7/70 UCS-2 chars), plus Twilio, Sinch, MessageBird, and Plivo API integration.

Explore Hungary's SMS landscape: compliance (Act XLVIII of 2008), features & best practices. Understand consent, number portability, & 2-way SMS support. Includes error code 21614 for landline sends & time zone (CET/CEST) restrictions. Ideal for technical implementation.

Explore India's SMS ecosystem: compliance (TCCCPR, DLT), features & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding, DND scrubbing & TRAI guidelines. Includes API integration code snippets & error handling for reliable messaging.

Explore Ireland SMS: compliance (GDPR, ePrivacy), features (two-way SMS), & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding. Includes opt-in/out, sending windows (09:00-18:00 IST), number portability, plus API integration code (Twilio, Sinch). Avoid error 21614.

Explore Oman SMS: compliance, features & best practices. Learn about mandatory sender ID pre-registration (14-18 days), consent rules, & GSM-7 (160 chars) vs UCS-2 (70 chars). Includes API integration code snippets & error handling for high throughput.

Angola SMS guide: compliance (Law 22/11), features, & best practices. Learn about alphanumeric sender IDs, message concatenation, & handling error code 21614. Understand consent, STOP commands (PARAR), time zones (WAT/UTC+1), plus Twilio, Sinch & MessageBird API integration details. Sending windows: 8AM-8PM WAT.

A technical guide to SMS in the Czech Republic, covering regulations like Act No. 480/2004 Coll. and GDPR. Learn about consent (timestamp, source), STOP commands, alphanumeric sender ID pre-registration (3 weeks), message concatenation (160 GSM-7/70 UCS-2 chars), and error codes (e.g., 21614 for landlines).

Explore Guatemala's SMS landscape: compliance (explicit consent, STOP keywords), features (one-way SMS), & sending best practices. No 2-way SMS via A2P. Adhere to UTC-6. Use E.164 formatting. Handle error code 21614 (Twilio) for landline sends. Incl. API integration: Twilio, Sinch, MessageBird.

Explore Israel SMS: compliance (Privacy Protection Law), features & best practices. Includes Hebrew charset, consent rules, & time restrictions (IST 08:00-22:00). Supports 2-way SMS & concatenated messages (160 GSM-7/70 UCS-2 chars). API integration details provided.

Explore SMS practices in the Netherlands Antilles: GSM-7 (160 chars) & Unicode (70 chars) encoding, plus error code 21614 for landline attempts. Understand consent, STOP commands, & AST hours. API integration details included.

A technical guide to Argentina SMS: compliance (ENACOM, PDPA), features (two-way SMS, concatenation: 160 GSM-7/70 Unicode chars), & sender options. Includes opt-in/out (STOP/AYUDA), number formatting (+54), plus API integration (Twilio, Sinch, Plivo) & error codes (21614, 21408) for developers.

Explore Jamaica's SMS landscape: compliance (FTC/OUR), features & best practices. Understand GSM-7 (160 chars) vs UCS-2 (70 chars) encoding, alphanumeric sender IDs. Includes Twilio, Sinch, MessageBird & Plivo API integration code examples & rate limits.

Explore Portugal SMS: compliance (GDPR, ANACOM), features (two-way SMS), & best practices. Understand consent (explicit opt-in), STOP keywords, & time zones (UTC+0/UTC+1). Sender IDs: alphanumeric (11 chars), long codes. Avoid 400 errors (code 21614) sending to landlines.

Explore Suriname SMS: compliance, features & APIs. Two-way SMS is unsupported; concatenated SMS is supported up to 160 GSM-7 chars. Follow SRT (UTC-3). Use alphanumeric sender IDs; no short codes. APIs: Twilio, Sinch, MessageBird, Plivo. Avoid gambling content. Maintain opt-in records.

Explore Belgium SMS: compliance (GDPR, BIPT), features (two-way, concatenation), & best practices. Includes multilingual STOP/ARRÊTER/STOPPEN keyword requirements. Learn about E.164 formatting (+32), alphanumeric sender IDs, & avoiding error code 21614 (landlines). API integration examples provided.

A technical guide to SMS in Bosnia & Herzegovina covering compliance (GDPR, opt-in/out: STOP, PRESTANI, OTKAZI), GSM-7/Unicode encoding (160/70 chars). Includes API integration (Twilio, Sinch, MessageBird), alphanumeric sender IDs, and error codes (400 response). Number portability is unavailable.

A technical guide to SMS in Bangladesh, covering compliance, features, and delivery. Learn about sender ID registration (3-week approval for some), GSM-7 (160 chars) vs UCS-2 encoding, and two-way SMS limitations. Includes API integration examples (Twilio, Sinch) and BTRC guidelines.

SMS guide for Bahamas: Understand GSM network specifics, encoding (GSM-7/UCS-2), & delivery. Explores 2-way SMS limitations, number portability, & URCA compliance. Includes Twilio, Sinch, MessageBird API integration & error codes. Send SMS using +1242 country code.

Explore Benin SMS: compliance (ARCEP), features, & best practices. Supports 2-way SMS, concatenated messages (160 GSM-7 chars), but not landlines. Mandates double opt-in, STOP/HELP commands, & 8 AM-5 PM GMT+1 sending window. Alphanumeric sender ID pre-registration required.

Understand Cuba SMS compliance: one-way SMS only; two-way not supported. Adhere to GSM 03.38 encoding & 160-char limit. Dialing code +53. Avoid Error 400 (21614) sending to landlines. Follow ETECSA's guidelines for optimal deliverability & compliance.

Explore Germany's SMS landscape: compliance (GDPR, BDSG), features (two-way SMS, concatenation), & best practices. Understand consent, opt-out ('STOP'), & time zones (8:00-20:00 CET). Includes API integration (Twilio, Sinch), error handling, and carrier specifics for reliable SMS delivery. Focus on E.164 formatting (+49).

Denmark SMS guide: Understand DK SMS compliance (GDPR, Marketing Act), features (two-way SMS, concatenated messages), & sender types (alphanumeric IDs, long codes). Includes opt-in/opt-out ('STOP', 'AFMELD') guidelines, time zone (CET/CEST) considerations, plus API integration examples. Sending to landlines returns error 21614.

Explore Dominican Republic SMS: compliance (Law 172-13, 310-14), features & best practices. Supports 2-way SMS & concatenated msgs (160 GSM-7 chars). Avoid 400 error 21614 by not sending to landlines. Includes Twilio, Sinch, MessageBird & Plivo API integration examples.

Explore Dominica's SMS landscape: message length is capped at 160 GSM-7 characters. Two-way SMS & MMS are unsupported; MMS converts to SMS with URLs. Adhere to AST/UTC-4 time zones. International long codes are viable; short codes aren't. Error 21614 indicates invalid numbers.

Explore Estonia's SMS landscape: compliance (GDPR, TTJA), features (two-way SMS), & best practices. Understand consent (3yr record retention), STOP keywords, & time restrictions (8:00-20:00 EET/EEST). Alphanumeric Sender IDs supported; landlines are not.

Explore Algeria SMS: compliance (ARPCE), features & best practices. Understand consent/opt-in (written/electronic), STOP/HELP keywords, & 8 AM-9 PM UTC+1 time restrictions. Includes concatenated SMS details (160 GSM-7 chars/segment), plus API integration (Twilio, Sinch, MessageBird, Plivo) examples.

Explore Fiji SMS: compliance, features & best practices. Understand GSM-7 (153 chars/segment) & Unicode (67 chars/segment). Handle 400 errors (code 21614) for landlines. Adhere to 8 AM - 6 PM FJT messaging window. Integrate Twilio (Sydney), Sinch, MessageBird & Plivo SMS APIs.

Explore Uganda SMS: compliance, features & APIs. Understand GSM-7 (160 chars) & UCS-2 (70 chars) encoding. Two-way SMS is unsupported. Alphanumeric Sender ID pre-registration takes ~3 weeks. Integrate Twilio, Sinch, MessageBird, Plivo for A2P messaging. Follow EAT (UTC+3) time zone.

A technical guide to SMS messaging in Iraq, detailing market conditions, features, and compliance. Understand GSM-7/UCS-2 encoding, alphanumeric sender IDs, and error 21614. Learn about consent, message concatenation, and API integrations with Twilio, Sinch, & MessageBird, plus rate limits (e.g., Twilio's 250 msg/sec).

SMS guide for Marshall Islands: compliance, features & APIs. Understand regulations from NTA, supported encodings (GSM-7: 160 chars, UCS-2: 70 chars). Includes Twilio, Sinch & Bird API integration examples, plus error handling. Two-way SMS not supported.

Explore Madagascar SMS: compliance (Interdepartmental Order 2471/2016), features, & best practices. Understand restrictions, sender IDs, & encoding (GSM-7/UCS-2). Learn about message concatenation, time-based limits (6 AM-10 PM UTC+3), and API integrations for reliable SMS.

This guide details South Korea SMS: compliance, features, and best practices. Understand stringent regulations, including mandatory opt-in/opt-out (수신거부), plus KISA's Do-Not-Send registry. Explore EUC-KR encoding, 70-Unicode-character limits, and handling error code 21614 for landlines.

Explore Latvia SMS: compliance (GDPR, opt-in/out in Latvian/English), features (concatenated SMS, alphanumeric sender IDs), & error codes (Twilio 21614). Includes best practices for 371 numbers.

Explore Liberia SMS: regulations, features, and best practices. Understand consent/opt-in (HELP/STOP), sender IDs, & content restrictions. No two-way SMS support. Adhere to 8 AM-8 PM sending window. Error codes include 4001 (invalid number) and 4004 (content rejected).

Explore Malawi SMS: compliance (MACRA), features & best practices. Understand SMS marketing restrictions (8 AM-5 PM UTC+2), alphanumeric sender IDs, & error codes (21614). Implement retries.

Explore Mauritania's SMS landscape: compliance, features, & best practices. Understand GSM-7 (160 chars) & Unicode (70 chars) limits. Learn about alphanumeric sender IDs, error code 21614 (landlines), consent, & opt-out (STOP/ARRET). Includes Twilio, Sinch, MessageBird & Plivo API integration.

Explore Myanmar SMS: compliance, features & best practices. Understand 2-way SMS, concatenated message rules (160 GSM-7/70 UCS-2 chars). Handle error 21614 (landlines). Pre-register alphanumeric SIDs (11 days). Respect quiet hours (22:00-06:00 MMT). Integrate Twilio, Sinch, MessageBird, Plivo.

Explore SMS capabilities in the Maldives: GSM-7/UCS-2 encoding, alphanumeric sender IDs (no pre-registration). Understand compliance, including opt-in best practices. Two-way SMS is unsupported. See error code 21614 for landline sends. Includes Twilio, Sinch API integration examples.

Explore Mongolia SMS: compliance, features & best practices. Understand GSM-7/UCS-2 encoding, sender ID options (alphanumeric, long codes), & content restrictions. Learn about 400 error code 21614, opt-in/opt-out (БОЛИХ/STOP), and SMS API integrations like Twilio, Sinch, MessageBird & Plivo.

Explore Mauritius SMS: compliance (ICTA, Data Protection Act 2017), features & best practices. Understand consent, opt-out, sender IDs, & message encoding (GSM-7/Unicode). Avoid 400 errors by not sending to landlines. Implement Twilio, Sinch, MessageBird, Plivo APIs.

This guide details SMS best practices in French Polynesia (PF), covering compliance with ARCEP/CNIL regulations. Learn about GSM-7 vs UCS-2 encoding, +689 dialing code, alphanumeric sender ID support, and handling error code 21614 (invalid landline). Includes API integration examples and sending window guidelines (8 AM-8 PM FPT).

Explore Russia's SMS landscape: compliance (Federal Law 126-FZ), character encoding (UCS-2/GSM-7), & sender ID registration. Understand message timing (9AM-9PM local), consent rules (500,000 RUB penalty), & two-way SMS limitations. Ideal for technical implementers needing Russia SMS specifics.

Technical guide to SMS in Puerto Rico (US): compliance (TCPA, CTIA), features, & delivery. Understand 10DLC registration, opt-in/out (STOP, HELP), & time zones (AST). Includes API integration (Twilio, Sinch), error codes (400), & character limits (160 GSM-7/70 UCS-2). Ideal for developers.

A technical guide to SMS in Rwanda covering compliance (RURA), features, & best practices. Understand alphanumeric sender ID registration (~3 weeks), opt-in rules, & encoding. Includes API integration examples (Twilio, Sinch, MessageBird), rate limits (MTN: 100 msg/sec), and error codes (400 for landlines).

Explore Seychelles SMS: compliance (Communications Act 2023), features, & best practices. Understand alphanumeric sender IDs, error codes (e.g., 21614), & message length. Learn about SCT (UTC+4) sending windows and API integrations (Twilio, Sinch, Plivo) for reliable SMS delivery.

Explore Saudi Arabia's SMS landscape: compliance (CITC, PDPL), features & best practices. Alphanumeric sender IDs are mandatory, requiring pre-registration. Two-way SMS is limited. Use GSM-7 encoding (160 chars) or UCS-2 (70 chars). Promotional msgs: 9 AM-8 PM (GMT+3). Error code 21614 for landlines.

Explore Slovenia's SMS landscape: compliance (GDPR, AKOS), features, & best practices. Two-way SMS is unsupported; use concatenated messages (160 GSM-7 chars). Includes API integration (Twilio, Sinch) & error codes like 400 for landline sends.

Sierra Leone SMS guide covering compliance, features, and best practices. Learn about sender ID options, supported encodings (GSM-7, UCS-2), and NatCA regulations. Understand SMS limitations like no two-way SMS or number portability. Includes code examples for Twilio, Sinch, Plivo & MessageBird.

A technical guide to Singapore SMS: compliance (Spam Control Act, PDPA), features, & best practices. Understand alphanumeric sender ID registration (SGD 500 setup), DNC checks (every 30 days), and message encoding (GSM-7 vs UCS-2). Includes API integration examples and error handling.

Explore Turkmenistan SMS: regulations, features & delivery. Understand GSM-7/UCS-2 encoding, sender ID rules, & content restrictions. Two-way SMS unsupported. Includes API integration (Twilio, Sinch) & error codes like 400 for landline attempts. Adhere to UTC+5 time zone & consent laws.

Explore Turkey SMS: compliance (Electronic Communications Law 5809), features, and best practices. Understand mandatory opt-in, İYS registration, and time restrictions (08:00-21:00 UTC+3). Implement concatenated messages with GSM-7 (160 chars) or UCS-2 (70 chars). Review API integrations.

Explore Taiwan SMS: compliance (NCC, PDPA), features & best practices. A2P two-way SMS is unsupported. Messages use GSM-7/UCS-2 encoding; max 65 chars for Chinese. Includes opt-in/out, DNC registry & time restrictions (GMT+8). API integration details provided.

Explore US SMS: compliance (TCPA, 10DLC), features (two-way, MMS, concatenation up to 1600 chars). Learn consent rules, opt-out keywords (STOP, HELP), time restrictions (9PM-8AM), & API integration (Twilio, Sinch). Avoid SHAFT content & filtering.

Explore Uruguay SMS: compliance (opt-in/opt-out), features, & API integration. Understand GSM-7/UCS-2 encoding, sender ID rules, & error handling. Learn URSEC regulations. API rate limits: Twilio (250/sec), Sinch (30/sec), MessageBird (60/sec). No MMS; use URL links.

A technical guide to SMS in Saint Vincent & The Grenadines (VC): Understand GSM-7 (160 chars) & Unicode (70 chars) limits. Two-way SMS is unsupported. Adhere to ECT/UTC-4 sending hours (8 AM-8 PM). Alphanumeric Sender IDs are supported, no short codes. API integration examples included.

This guide details SMS guidelines for the British Virgin Islands (BVI), including compliance and technical specs. BVI uses MCC 348 & int'l code +1284. Two-way SMS isn't supported. GSM-7 encoding allows 160 chars (single) or 153 (concatenated), while Unicode is 70/67 chars. Learn more!

This guide details SMS best practices and compliance for the US Virgin Islands (VI). Understand message length (GSM-7: 160 chars, UCS-2: 70 chars), consent (TCPA), and sender types. Explore API integration, error codes (400), plus delivery & regulatory guidelines for MCCs 310, 311, & 332.

Understand South Africa's SMS regulations, WASPA compliance, and POPIA for effective messaging. Learn about 160 GSM-7 character limits, Unicode (70 chars), number portability, & consent. Implement 8 AM-8 PM weekday/9 AM-1 PM Saturday time windows and secure data practices for optimal delivery.

Explore Vanuatu SMS: compliance (Act No. 30 of 2009), features, & delivery. Two-way SMS & concatenated msgs not supported. Use +678 country code. Adhere to VUT (UTC+11) time zone. Implement STOP/HELP commands in English/French. Includes API integration code examples.