SIP UserAgent(UAS and UAC) Sample -- by larkguo@gmail.com 1.Architecture: UA ==command==> eXosip2 UA <==notify== eXosip2 2.Requires: libosip2-5.0.0 libeXosip2-5.0.0 3.Compile:(assumed that osip2 & eXosip2 are installed in /usr/local) gcc -I/usr/local/include -L/usr/local/lib ua.c -o ua -leXosip2 \ -losip2 -losipparser2 -lpthread 4.Run: export LD_LIBRARY_PATH+=/usr/local/lib: ./ua -r sip:DOMAIN-OR-IP -R sip:X.X.X.X:5060 -f sip:FROM-USER@DOMAIN \ -t sip:TO-USER@DOMAIN -U AUTH-USER -P AUTH-PASSWORD 6.Register: UAC/UAS PROXY 1 -REGISTER-> <-401- -REGISTER(auth)-> <-200- 7.Call: UAC (PROXY) UAS 2 -INVITE-> <-407- -INVITE(auth)-> <-180- <-200- 3 -ACK-> 4 -reINVITE-> <-200- -ACK-> 5 -BYE-> <-200-