Код
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[ 23/03/16 12:03:13 ]===========================================================
Received 337 Bytes from 10.27.240.12:5060 by UDP (ReceiveEv)
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SIP/2.0 200 OK
From: <sip:10.48.18.2:5060>;tag=41645ce0-212300a-13c4-55013-3d-293aec3f-3d
To: <sip:keepalive@10.27.240.12>;tag=j33lpkiu
Call-ID: 41645ce0-212300a-13c4-55013-3d-2f8c4ed8-3d
CSeq: 328845441 OPTIONS
Via: SIP/2.0/UDP 10.48.18.2:5060;received=10.27.240.58;branch=z9hG4bK-3d-f0ce-7b922f5c;rport=5060
Content-Length: 0
================================================================================
[ 23/03/16 12:03:23 ]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Sent 442 Bytes to 10.27.240.12:5060 by UDP (SendEv)
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OPTIONS sip:keepalive@10.27.240.12 SIP/2.0
From: <sip:10.48.18.2>;tag=41645e88-212300a-13c4-55013-47-31560ebd-47
To: <sip:keepalive@10.27.240.12>
Call-ID: 41645e88-212300a-13c4-55013-47-409196ba-47
CSeq: 1219041412 OPTIONS
Via: SIP/2.0/UDP 10.48.18.2:5060;rport;branch=z9hG4bK-47-117e3-3e331bcb
Max-Forwards: 70
Supported: 100rel,timer,replaces,UPDATE,INFO
User-Agent: Ericsson-LG Enterprise iPECS-LIK 100 6.1Bf
Content-Length: 0
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[ 23/03/16 12:03:23 ]===========================================================
Received 339 Bytes from 10.27.240.12:5060 by UDP (ReceiveEv)
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SIP/2.0 200 OK
From: <sip:10.48.18.2:5060>;tag=41645e88-212300a-13c4-55013-47-31560ebd-47
To: <sip:keepalive@10.27.240.12>;tag=myiljqrh
Call-ID: 41645e88-212300a-13c4-55013-47-409196ba-47
CSeq: 1219041412 OPTIONS
Via: SIP/2.0/UDP 10.48.18.2:5060;received=10.27.240.58;branch=z9hG4bK-47-117e3-3e331bcb;rport=5060
Content-Length: 0
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Вот что сыпет провайдер.