Sender ID:
Please note that the networks permit alpha dynamic SIDs and all numeric senders to Greece are being changed to NXSMS in order to avoid filtering by the operators.
Content:
There are no additional content restrictions beyond those in our Acceptable Use Policy
Other features/restrictions of note:
Delivery Receipts:
All DLRs are real.
Links:
Global SMS Features Overview (Outbound only)
Global SMS Numbers Features Overview