Armenia SMS Guide - sms-compliance -

Frequently Asked Questions

Use a reputable SMS API provider like Twilio, Sinch, MessageBird, or Plivo. Ensure the recipient's number is in E.164 format (+374...) and use a pre-registered alphanumeric sender ID for optimal delivery.
SMS messages are limited to 160 characters with GSM-7 encoding or 70 characters with UCS-2 encoding for Unicode. Concatenated messaging is supported for longer messages, splitting them into multiple parts.
Two-way SMS is not available in Armenia through standard A2P channels. Businesses cannot receive replies to their SMS messages.
The recommended sending window is 9:00 AM to 8:00 PM local time (GMT+4). Avoid sending messages during major holidays or after-hours unless urgent.
MMS is not directly supported. MMS messages are converted to SMS with a URL where the recipient can view the multimedia content.
Alphanumeric sender IDs require pre-registration with Armenian carriers, typically taking three weeks for approval. Sender IDs are limited to 11 characters and cannot include special characters.
While not legally mandated, best practice is to support HELP/STOP keywords in Armenian and English. Process opt-out requests within 24 hours and send confirmation messages.
Restricted content includes gambling, political campaigns, adult material, religious content, and illegal substances. Avoid URL shorteners and suspicious domains to prevent filtering.
Use the E.164 format, which includes the country code +374 followed by the subscriber number. This ensures messages are correctly routed regardless of the carrier.
Several providers like Twilio, Sinch, MessageBird, and Plivo offer robust APIs for sending SMS to Armenia. Their documentation provides code examples and best practices.
Keep messages concise, personalize content, maintain consistent sender ID, localize for Armenian and Russian languages, respect opt-outs, and monitor delivery rates across different carriers.
Number portability is available and doesn't significantly impact SMS delivery, as messages are automatically routed to the correct carrier based on the recipient's number.
No, SMS cannot be sent to landline numbers in Armenia. Attempts to do so will result in delivery failure.
The PSRC regulates Armenia's telecommunications sector. While specific SMS marketing laws are not strict, following international best practices is recommended.
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