Telekom Serbia (22003) and Telenor (22001): Alphanumeric Sender ID registration is supported. Numeric Sender IDs and generic Sender IDs which are not registered will be overwritten to Verify to ensure delivery. Short code and long code Sender IDs are not supported.
It is mandatory when you send promotional messages to Serbia to mention the opt-out method at the end of each message.
There are no additional content restrictions beyond those in our Acceptable Use Policy.
Other Features or Restrictions
Handset delivery receipts are supported.
For more information, see the following articles: