Hello, you can refer following documents.These may help you.
1. IETF RFC 3398 2. ITU-T Q.1912.5 These documents basically talks about SIP to PSTN and PSTN to SIP cause code mapping. Regards Vinod Kagalkar Senior Project Leader MultiTech Software systems Bangalore Vishal Kumar Singh wrote: >Hello Everyone, > >I was wondering if someone can provide me with information about what >are the SIP failures typically encountered by the Network Administrators >on proxies and end points or in general in IP Telephony networks. > >We are trying to develop tools which will help in debugging SIP failures >and hence wanted to get some inputs based on real world experiences. > >Regards, >Vishal > > > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
