Carriers in Hungary are increasing their interworking fees and closing down the routes which don't have interworking fees. To ensure stable delivery, Nexmo is delivering via local connections.
Sender ID:
Sender ID is changed to +36707177171.
You can get your own numeric Sender ID which can be used to enable 2-way SMS with your customers. See our inbound pricing at www.nexmo.com/pricing.
Content:
There are no additional content restrictions beyond those in our Acceptable Use Policy
Other features/restrictions of note:
Delivery Receipts:
Handset DLR is supported
Links:
Global SMS Features Overview (Outbound only)
Global SMS Numbers Features Overview