Seychelles SMS Guide - sms-compliance -

Frequently Asked Questions

Use an SMS API like Twilio, Sinch, MessageBird, or Plivo. Ensure the recipient's number is in E.164 format (+248 followed by the number) and use an approved sender ID. Implement proper error handling and monitor delivery rates for optimal performance.
Seychelles has a growing mobile market with increasing SMS usage. While OTT apps are popular, SMS remains reliable for business communication and critical alerts due to its broad reach. Key operators include Airtel.
According to current platform capabilities, two-way SMS is not supported in Seychelles. Businesses can send messages but cannot receive replies via the same channel.
The recommended window for marketing messages is 10:00 AM to 6:00 PM SCT on business days. Respect local holidays and weekends, and avoid sending during major cultural or religious events.
No, sending SMS to landlines in Seychelles is not possible. Attempts will result in a 400 response with error code 21614, but accounts won't be charged.
The Mobile Country Code (MCC) for Seychelles is 633. This code is essential for routing international SMS messages correctly.
Obtain explicit opt-in consent before sending marketing messages, honor STOP requests immediately, and respect sending hours. Adhere to general telecommunications guidelines and international best practices.
Concatenated SMS is not supported in Seychelles. Standard SMS length limits apply, so keep messages concise to ensure reliable delivery within a single SMS.
Alphanumeric sender IDs are supported and don't require pre-registration. However, they may be overwritten on the Airtel network with a generic alphanumeric ID.
Process opt-out requests within 24 hours, maintain a centralized opt-out database, and send an opt-out confirmation message. Conduct regular audits for compliance.
Keep messages under 160 characters, include a clear call to action, and maintain a consistent sender ID. Limit marketing messages and personalize thoughtfully.
MMS is not directly supported. Instead, MMS content is converted to an SMS with a URL so recipients can view the multimedia content online, maintaining compatibility with local networks.
Gambling, adult content, cryptocurrency promotions, unauthorized financial services, and political messaging without authorization are restricted.
The default rate limit is 100 messages per second. Batch processing and queuing are recommended for high volumes. Implement exponential backoff for retries.
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