> I'm still struck with previous error "undefined reference? to 'pjsua_invite' That error comes up because there is no function called 'pjsua_invite' defined in the pjsua API - you need to go through the current API for a function that does the job you want. > I replaced it with pjsip_inv_invite, pjsua_make_call, but it shows the same > instead of pjsua_invite it's either pjsip_inv_invite or pjsua_make_call. > > I tried your other code(pjsua_inv.c) it shows me lots of error. pjsua_inv.c is purely to demonstrate how the pjsua_invite function was implemented - it probably uses deprecated/changed parts of the API. It can be a useful starting point, but like I said you'll either need to write your own pjsua_invite function or find a library function that does the job already. I don't really know the sua/sip side of the library well enough to help you more than that, I'm afraid! John G
