U +0.029025 OpenSER:5060 -> UAC:5060
SIP/2.0 100 Giving a try.
Via: SIP/2.0/UDP 192.168.0.126;rport=5060;branch=z9hG4bKc0a8007e000000ab464b0e0c00006c7e000005ed;received=UAC.
Call-ID: 0ED32AD0-3691-44D8-9E19-A32F5C913F43@192.168.0.126.
CSeq: 2 INVITE.
From: "unknown"<sip:9492666205@sip.demo.com:5060>;tag=21354640612611.
To: <sip:*721111111111@sip.demo.com:5060>.
Server: OpenSER (1.3.0-dev4-notls (x86_64/linux)).
Content-Length: 0.
Warning: 392 OpenSER:5060 "Noisy feedback tells:  pid=19269 req_src_ip=UAC req_src_port=5060 in_uri=sip:*721111111111@sip.demo.com:5060 out_uri=sip:call_forward_enable@OpenSER:5070 via_cnt==1".
.


U +0.000233 OpenSER:5060 -> UAC:5060
SIP/2.0 500 Server error occurred (1/SL).
Via: SIP/2.0/UDP 192.168.0.126;rport=5060;branch=z9hG4bKc0a8007e000000ab464b0e0c00006c7e000005ed;received=UAC.
Call-ID: 0ED32AD0-3691-44D8-9E19-A32F5C913F43@192.168.0.126.
CSeq: 2 INVITE.
From: "unknown"<sip:9492666205@sip.demo.com:5060>;tag=21354640612611.
To: <sip:*721111111111@sip.demo.com:5060>;tag=329cfeaa6ded039da25ff8cbb8668bd2.a0a9.
Server: OpenSER (1.3.0-dev4-notls (x86_64/linux)).
Content-Length: 0.
Warning: 392 OpenSER:5060 "Noisy feedback tells:  pid=19269 req_src_ip=UAC req_src_port=5060 in_uri=sip:*721111111111@sip.demo.com:5060 out_uri=sip:+1call_forward_enable@4.79.212.236:5060 via_cnt==1".
.