USSD GW

This is an implementation an USSD gateway acting as a MAP Service Control Function (gsmSCF) and as a HLR at the same time. When communicating with a HLR or VLR, the YATE USSD GW acts as a gsmSCF. When communicating with a gsmSCF, the YATE USSDGW acts as a HLR. The purpose of this project is to:

• redirect USSD requests arriving either from user side or gsmSCF side to a SMPP client where they can be altered.
• act as a proxy for requests that need not be handled by SMPP clients or when the SMPP handling fails