hi all,

Swisscom will discontinue the old GSM service soon, so I'll need to replace an old gateway.

Any recommendation will be appreciated. I'm looking for a ready-made voice gateway, as follows:

* 4 or 5 SIM card slots
* support for VoLTE and UMTS (in Swiss frequency bands)
* Voice calls routed via SIP
* API for receiving SMS
* Nice to have: support for OpenVPN or some other VPN.


Stanislav Sinyagin
Senior Consultant, CCIE #5478
+41 79 407 0224