this is the ngrep -record when i tried to make a incoming call from PSTN<br>
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U <a href="http://81.21.38.13:57812">81.21.38.13:57812</a> -> <a href="http://81.21.33.35:5060">81.21.33.35:5060</a><br>
INVITE sip:22030980@81.21.33.35:5060 SIP/2.0.<br>
Via: SIP/2.0/UDP <a href="http://81.21.38.13:5060">81.21.38.13:5060</a>.<br>
From: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;tag=78415468-CC3.<br>
To: <<a href="mailto:sip:22030980@81.21.33.35">sip:22030980@81.21.33.35</a>>.<br>
Date: Fri, 15 Sep 2006 09:15:20 GMT.<br>
Call-ID: <a href="mailto:8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13">8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13</a>.<br>
Supported: timer,100rel.<br>
Min-SE: 1800.<br>
Cisco-Guid: 3763255713-1164120539-2201223171-3126568985.<br>
User-Agent: Cisco-SIPGateway/IOS-12.x.<br>
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO.<br>
CSeq: 101 INVITE.<br>
Max-Forwards: 6.<br>
Remote-Party-ID: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;party=calling;screen=yes;privacy=off.<br>
Timestamp: 1158311720.<br>
Contact: <sip:22498045@81.21.38.13:5060>.<br>
Expires: 180.<br>
Allow-Events: telephone-event.<br>
Content-Type: application/sdp.<br>
Content-Length: 274.<br>
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v=0.<br>
o=CiscoSystemsSIP-GW-UserAgent 9485 5123 IN IP4 <a href="http://81.21.38.13">81.21.38.13</a>.<br>
s=SIP Call.<br>
c=IN IP4 <a href="http://81.21.38.13">81.21.38.13</a>.<br>
t=0 0.<br>
m=audio 17124 RTP/AVP 18 0 8 100.<br>
a=rtpmap:18 G729/8000.<br>
a=fmtp:18 annexb=no.<br>
a=rtpmap:0 PCMU/8000.<br>
a=rtpmap:8 PCMA/8000.<br>
a=rtpmap:100 X-NSE/8000.<br>
a=fmtp:100 192-194.<br>
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#<br>
U <a href="http://81.21.33.35:5060">81.21.33.35:5060</a> -> <a href="http://81.21.38.13:5060">81.21.38.13:5060</a><br>
SIP/2.0 407 Proxy Authentication Required.<br>
Via: SIP/2.0/UDP <a href="http://81.21.38.13:5060">81.21.38.13:5060</a>.<br>
From: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;tag=78415468-CC3.<br>
To: <<a href="mailto:sip:22030980@81.21.33.35">sip:22030980@81.21.33.35</a>>;tag=74961b5b71b6ddce908b9155b956083f.58b5.<br>
Call-ID: <a href="mailto:8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13">8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13</a>.<br>
CSeq: 101 INVITE.<br>
Proxy-Authenticate: Digest realm="<a href="http://81.21.33.35">81.21.33.35</a>", nonce="450a6fac7fc0d4000fd13a85f7f6c55323ed6a5c".<br>
Content-Length: 0.<br>
Warning: 392 <a href="http://81.21.33.35:5060">81.21.33.35:5060</a> "Noisy feedback tells: pid=24505
req_src_ip=<a href="http://81.21.38.13">81.21.38.13</a> req_src_port=57812
in_uri=sip:22030980@81.21.33.35:5060
out_uri=sip:22030980@81.21.33.35:5060 via_cnt==1".<br>
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#<br>
U <a href="http://81.21.38.13:57812">81.21.38.13:57812</a> -> <a href="http://81.21.33.35:5060">81.21.33.35:5060</a><br>
ACK sip:22030980@81.21.33.35:5060 SIP/2.0.<br>
Via: SIP/2.0/UDP <a href="http://81.21.38.13:5060">81.21.38.13:5060</a>.<br>
From: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;tag=78415468-CC3.<br>
To: <<a href="mailto:sip:22030980@81.21.33.35">sip:22030980@81.21.33.35</a>>;tag=74961b5b71b6ddce908b9155b956083f.58b5.<br>
Date: Fri, 15 Sep 2006 09:15:20 GMT.<br>
Call-ID: <a href="mailto:8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13">8BB4320C-43D111DB-9F91880F-F0154510@81.21.38.13</a>.<br>
Max-Forwards: 6.<br>
Content-Length: 0.<br>
CSeq: 101 ACK.<br>
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#<br>
U <a href="http://81.21.38.13:51826">81.21.38.13:51826</a> -> <a href="http://81.21.33.35:5060">81.21.33.35:5060</a><br>
INVITE sip:22030980@81.21.33.35:5060 SIP/2.0.<br>
Via: SIP/2.0/UDP <a href="http://81.21.38.13:5060">81.21.38.13:5060</a>.<br>
From: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;tag=78415970-1FEC.<br>
To: <<a href="mailto:sip:22030980@81.21.33.35">sip:22030980@81.21.33.35</a>>.<br>
Date: Fri, 15 Sep 2006 09:15:22 GMT.<br>
Call-ID: <a href="mailto:8C78BCF5-43D111DB-9F95880F-F0154510@81.21.38.13">8C78BCF5-43D111DB-9F95880F-F0154510@81.21.38.13</a>.<br>
Supported: timer,100rel.<br>
Min-SE: 1800.<br>
Cisco-Guid: 3776566429-1164120539-2202206211-3126568985.<br>
User-Agent: Cisco-SIPGateway/IOS-12.x.<br>
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO.<br>
CSeq: 101 INVITE.<br>
Max-Forwards: 6.<br>
Remote-Party-ID: <<a href="mailto:sip:22498045@81.21.38.13">sip:22498045@81.21.38.13</a>>;party=calling;screen=yes;privacy=off.<br>
Timestamp: 1158311722.<br>
Contact: <sip:22498045@81.21.38.13:5060>.<br>
Expires: 180.<br>
Allow-Events: telephone-event.<br>
Content-Type: application/sdp.<br>
Content-Length: 274.<br>
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And these messages are repeating until the requested time out;-)<br>
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Whats wrong here :-<br>
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Hope this information can help me<br>
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Thanks,<br>
Ravi.<br>
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