Sender ID:
There are no known restrictions on Sender ID to Cyprus.
Content:
There are no additional content restrictions beyond those in our Acceptable Use Policy
Other features/restrictions of note:
Delivery Receipts:
We are currently using a direct link to 28001 Cytamobile-Vodafone that does not return DLRs, so please do not rely on DLRs as delivery confirmation.
Links:
Global SMS Features Overview (Outbound only)
Global SMS Numbers Features Overview