There are no known restrictions on Sender ID in Rwanda.
Pre-registering Sender ID for domestic traffic:
We support domestic traffic with much lower pricing for pre-registered Sender IDs. If you have a company operating in Rwanda, please contact your account manager or firstname.lastname@example.org for more information.
There are no additional content restrictions beyond those in our Acceptable Use Policy
Other features/restrictions of note:
Handset delivery receipts are supported.