PoC of a simple USSD application for mobile networks - based on Kamailio
This PoC requires Kamailio Dev-Version, as the latest version includes functionalities to send requests within dialogs from Script - together with the patch to update CSeq numbers. The Kamailio Version from this Branch needs to be used: https://github.com/kamailio/kamailio/tree/carstenbock/dialog_cseq_update/src/modules
The IMS needs to have a service profile configured, which will point the SIP Messages for USSD towards the USSD-PoC-AS.