Introducing the GSUP based external USSD interface of the Osmocom Core Network stack
In this talk Vadim will to share the state of external SS/USSD interface support in the Osmocom core-network stack. For many years there was the only one USSD-code (i.e. '*#100#'), that was used to get subscriber's extension.
Recent developments in OsmoMSC and OsmoHLR have made it possible to connect an external USSD gateway, and handle USSD-sessions outside the Osmocom stack.
![osmo-fl2k - the [evil] transmit-side brother of RTL-SDR](https://static.media.ccc.de/media/events/osmocon/2018/83-hd.jpg "osmo-fl2k - the [evil] transmit-side br…")
