Hi Benny, > But if you want to use private IP as you SIP address, that's also > possible, but we'll need to use different approach. The problem with > your approach is it's interacting with intimate details of pjsip, so > it's not guaranteed to work in the future. A better approach is to > specify your (private) IP address in the "public_addr" field of > pjsua_transport_config, to tell pjsip to use this value instead of > resolving the address with STUN. This technique will only work with > 0.8.0 though. Ahh, ok. Actually, I did try with the public_addr field but was having some issues (can't recollect what they were) as I was on version 0.7. I will try this out with 0.8 now. Thanks a lot for the help and a wonderful, scalable library :). Great work, Sir! Best Regards, Hitesh