ISSUE: When a lync client make a call to a custom client this issue arise. SIP/2.0 415 Unsupported Media Type Via: SIP/2.0/TLS 192.168.0.3:5061;branch=z9hG4bKD46A59CA.99BC04A5AF342A99;branched=FALSE;ms-internal-info="beEdEaEIWfaYJeF8c6BZ3b0XKNdvQ3PyQaRPEpAEarjbWlBLyZ_eZHbgAA" Via: SIP/2.0/TLS 192.168.0.4:55803;branch=z9hG4bK36072482.06B5227EC88DCA9A;branched=FALSE;ms-received-port=55803;ms-received-cid=162D00 Via: SIP/2.0/TLS 192.168.0.100:50797;received=x.x.x.x;ms-received-port=50797;ms-received-cid=8C00 Record-Route: <sip:FE.domain.local:5061;transport=tls;opaque=state:T:F:Ci.R16a800;lr;ms-route-sig=adlkYhe7OeBeVys8TvobWpLmx2HSLx-xldaLJ-jRlgx4mlBLyZI12ObwAA>;tag=D5120ECF36260EB267FB812D17DAE391 From: "Test User 3" <sip:test3@fe.local>;tag=be345768e2;epid=3bcd1d97b8 To: <sip:demouser@fe.local>;epid=13757352 Call-ID: ff8f03c39c46499db228eab1eb58fed9 CSeq: 1 INVITE Authorization: NTLM qop="auth", realm="SIP Communications ...
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