Hi; herein a SIP message:
INVITE sip:edi-2001@mydomain.com SIP/2.0 Record-Route: sip:10.42.0.11;transport=tcp;lr=on;ftag=CXdThPs~D;nat=yes Via: SIP/2.0/TCP 195.206.195.60:5062;branch=z9hG4bK75e7.c59c73a3d2c11ea11f537dd564b8f456.0;i=1 Via: SIP/2.0/TCP 192.168.0.162:33857;received=218.118.243.25;branch=z9hG4bK.7ow6fmWFa;rport=35428 From: sip:edi-1@mydomain.com;tag=CXdThPs~D To: sip:edi-2001@mydomain.com CSeq: 21 INVITE Call-ID: OCj09Rh8FG Contact: sip:edi-2001@10.42.0.11:5060;transport=TCP Max-Forwards: 69 Supported: replaces, outbound Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE Content-Type: application/sdp Content-Length: 279 sip:edi-1@218.118.243.25:35428;transport=tcpUser-Agent: LinphoneAndroid/3.2.7 (belle-sip/1.6.1) Authorization: Digest realm="mydomain.com", nonce="1506953052/0607f6c787e1c3a4d93b6914b15e5c8a", algorithm=md5, opaque="0c4d6f016c1af8a7", username="edi-1", uri="sip:edi-2001@mydomain.com", response="5a4ed7ff3a0c8d81fcd5e809ae55adba", cnonce="IlTh9WQHguYFL2aM", nc=00000001, qop=auth Path: sip:195.206.195.60:5062;transport=tcp;lr;received=sip:218.118.243.25:35428%3Btransport%3Dtcp
v=0 o=edi-1 2638 2521 IN IP4 195.206.195.60 s=Talk c=IN IP4 195.206.195.60 b=AS:380 t=0 0 a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics m=audio 11204 RTP/AVP 0 8 3 101 a=rtpmap:101 telephone-event/8000 a=rtcp-fb:* ccm tmmbr a=nortpproxy:yes