Mongolia SMS Guide - sms-compliance -

Frequently Asked Questions

Use the international format (+976) followed by the recipient's number. Several SMS API providers like Twilio, Sinch, MessageBird, and Plivo offer integration options for sending messages to Mongolia. Remember to comply with local regulations and best practices.
Mongolia supports basic SMS, including concatenated messages for longer texts. However, two-way SMS and MMS are not directly supported. MMS content is converted to SMS with a URL link. Number portability is also not available.
According to current carrier configurations, two-way SMS is not supported in Mongolia. Businesses should therefore design their SMS strategies around one-way communication only.
Standard SMS length limits apply: 160 characters for GSM-7 encoding and 70 characters for UCS-2 encoding. Mongolian script requires UCS-2, reducing the character limit per segment.
The best practice is to send messages between 9:00 AM and 8:00 PM local time (UTC+8). Avoid sending during national holidays or outside these hours unless it's urgent, considering seasonal daylight variations.
No, sending SMS to landlines in Mongolia is not supported. Attempts to do so will result in failed delivery and an error response, but you won't be charged.
While specific SMS marketing regulations are evolving, obtain explicit opt-in consent before sending marketing messages. Implement clear opt-out mechanisms, maintain records of consent and opt-outs, and follow international best practices.
Support both English and Mongolian opt-out keywords like STOP/??????????. Process requests within 24 hours, send confirmation messages in the same language as the request, and maintain suppression lists for at least 12 months.
Alphanumeric sender IDs and international long codes are supported, with sender ID preservation. Domestic long codes and short codes are not currently available in Mongolia.
Document how and when consent was obtained, use double opt-in processes, clearly state the type and frequency of messages, and provide terms and conditions in both Mongolian and English.
Gambling, adult content, unauthorized financial services, political campaigns without authorization, and cryptocurrency promotions are restricted. Content filtering may also block certain keywords, suspicious URLs, and high-volume sending from new IDs.
Keep messages concise, include clear calls to action, personalize content, limit marketing messages to a reasonable frequency, localize content, manage opt-outs effectively, and test across all major carriers.
Implement queue systems, use batch APIs, and employ exponential backoff for retries. Monitor delivery rates and adjust sending speed as needed.
Twilio, Sinch, MessageBird, and Plivo provide SMS API integrations with varying throughput rates and functionalities. Each offers different code examples and documentation for setup.
Implement logging, track delivery receipts, monitor common error codes like invalid number format, network errors, and rate limit issues, and set up automated alerts for error thresholds.
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