Via: SIP/2.0/UDP 10.10.10.100:5060;branch=z9hG4bKz4j0izm0i8jcn2pmlkm4c24cz
Route: <sip:10.10.10.200:5060;transport=udp;lr>
CSeq: 1 INVITE
Contact: <sip:654321@10.10.10.100:5060;transport=udp>
Supported: 100rel,replaces,timer,privacy,in-dialog
Session-Expires: 1800
Accept: application/sdp,application/simservs+xml
Min-SE: 90
Accept-Encoding: identity
Accept-Language: en
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Max-Forwards: 70
User-Agent: HUAWEI-EchoLife HG8245/V1R003C00S205
Session-ID: 20zlkckj1kz4ll1i1ic2pl1csk80kli1
Content-Length: 318
Content-Type: application/sdp
Via: SIP/2.0/UDP 10.10.10.100:5060;branch=z9hG4bK0lz4ll1ikm1k02p20lz4ll1il
Route: <sip:10.10.10.200:5060;transport=udp;lr>
CSeq: 2 INVITE
Contact: <sip:654321@10.10.10.100:5060;transport=udp>
Supported: 100rel,replaces,timer,privacy,in-dialog
Session-Expires: 1800
Accept: application/sdp,application/simservs+xml
Min-SE: 90
Proxy-Authorization: Digest username="654321",realm="10.10.10.200",nonce="VzrPHVc6zfEYftiGlJYC9XLb4ixCZtQB",uri="
sip:123456@10.10.10.200",response="55e03b278f1cbdda52852004bbc8d7c9",algorithm=MD5,cnonce="0f31d
b",qop=auth,nc=00000006
Accept-Encoding: identity
Accept-Language: en
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Max-Forwards: 70
User-Agent: HUAWEI-EchoLife HG8245/V1R003C00S205
Session-ID: 20zlkckj1kz4ll1i1ic2pl1csk80kli1
Content-Length: 318
Content-Type: application/sdp
INVITE sip:123456@10.10.10.100:5060;transport=udp SIP/2.0
Record-Route: <sip:10.10.10.200;lr=on;ftag=pk4nzz3j;nat=yes;did=925.a5a1;vst=AAAAAAkLCwgLCnEDBHgfBg4WHwIWHQMuMzc-;vsf=AAAAAAkLAwgLAnEDBHgfBg4WHwIWHQMuMzc->
Via: SIP/2.0/UDP 10.10.10.200;branch=z9hG4bKd55d.f4d5d1ee3d090fe847af101d0a47ac5e.0
Via: SIP/2.0/UDP 10.10.10.100:5060;rport=5060;branch=z9hG4bK0lz4ll1ikm1k02p20lz4ll1il
CSeq: 2 INVITE
Contact: <sip:654321@10.10.10.100:5060;transport=udp>
Supported: 100rel,replaces,timer,privacy,in-dialog
Session-Expires: 1800
Accept: application/sdp,application/simservs+xml
Min-SE: 90
Accept-Encoding: identity
Accept-Language: en
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Max-Forwards: 69
User-Agent: HUAWEI-EchoLife HG8245/V1R003C00S205
Content-Length: 334
Content-Type: application/sdp
INVITE sip:123456@10.10.10.100:5060;transport=udp SIP/2.0
Record-Route: <sip:10.10.10.200;lr=on;ftag=pk4nzz3j;nat=yes;did=925.a5a1;vst=AAAAAAkLCwgLCnEDBHgfBg4WHwIWHQMuMzc-;vsf=AAAAAAkLAwgLAnEDBHgfBg4WHwIWHQMuMzc->
Via: SIP/2.0/UDP 10.10.10.200;branch=z9hG4bKd55d.f4d5d1ee3d090fe847af101d0a47ac5e.0
Via: SIP/2.0/UDP 10.10.10.100:5060;rport=5060;branch=z9hG4bK0lz4ll1ikm1k02p20lz4ll1il
CSeq: 2 INVITE
Contact: <sip:654321@10.10.10.100:5060;transport=udp>
Supported: 100rel,replaces,timer,privacy,in-dialog
Session-Expires: 1800
Accept: application/sdp,application/simservs+xml
Min-SE: 90
Accept-Encoding: identity
Accept-Language: en
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Max-Forwards: 69
User-Agent: HUAWEI-EchoLife HG8245/V1R003C00S205
Content-Length: 334
Content-Type: application/sdp
SIP/2.0 481 Call/Transaction Does Not Exist
Via: SIP/2.0/UDP 10.10.10.200;branch=z9hG4bKd55d.f4d5d1ee3d090fe847af101d0a47ac5e.0,SIP/2.0/UDP 10.10.10.100:5060;branch=z9hG4bK0lz4ll1ikm1k02p20lz4ll1il;rport=5060
CSeq: 2 INVITE
Warning: 399 10.10.10.100 "SS100006F143L3557[05552] No Dialog match"
User-Agent: HUAWEI-EchoLife HG8245/V1R003C00S205
Content-Length: 0