Networks in Saudi Arabia have implemented very complex spam filters that in most cases block even legitimate application to person traffic. Therefore, cheap signaling or roaming links do not deliver well especially for high-value content such as password delivery or alerts, let alone marketing bulk traffic.
Vonage has partnered with suppliers that can pre-register against, and deliver SMS without problem. Ensure you are not using numeric or generic alpha Sender IDs and that you pre-register your alpha Sender ID and content with us.
To reduce spam, the Communications and Information Technology Commission (CITC) require Sender ID and separately URL registration, to which all Saudi operators are obliged to comply.
For bulk message (ads and promotions, anything non-transactional) the Sender ID must include the suffix "-AD" or " AD". So promotional content has to be sent with "SID-AD" (length = 11 digits) format, for example, Nexmo-AD.
Promotional or marketing content is allowed only between 8:00 a.m. and 10:00 p.m. Saudi Arabia time (GMT+03:00).
If you have transactional messages which are either user-generated or expected, you can register an alpha Sender ID to bypass the traffic filters and NDNC registry.
No adult content is allowed.
No political content is allowed.
No religious content is allowed.
Unicode is fully supported, other than the '£' (British pound sign), which is not accepted.
Concatenated messages are not supported.
Other Features or Restrictions
Handset delivery receipts are not supported.
For more information, see the following articles: