192.168.0.10:1062 192.168.5.2:5060  192.168.0.10:1027
|                  |                  | <Call><PFrame><Time>
|                  |                  |
|<-(sdp) INVITE F1<|                  |  35 PF:745 14:12:19.6626
|                  |>F2 INVITE (sdp)->|  36 PF:746 14:12:19.6630
|>F3 100 Trying -->|                  |  35 PF:747 14:12:19.8197
|>F4 180 Ringing ->|                  |  35 PF:748 14:12:19.9582
|                  |>F5 INVITE (sdp)->|  36 PF:751 14:12:20.0177
|                  |<-- Trying 100 F6<|  36 PF:755 14:12:20.2032
|                  |<- Ringing 180 F7<|  36 PF:757 14:12:20.4572
|                  |                  |
|                  |<-(sdp) OK 200 F8<|  36 PF:762 14:12:21.9770
|                  |>F9 ACK --------->|  36 PF:763 14:12:21.9772
|<----- CANCEL F10<|                  |  35 PF:764 14:12:21.9774
|                  |                  |
|>F11 200 OK (sdp)>|                  |  35 PF:847 14:12:49.7214
|>F12 200 OK (sdp)>|                  |  35 PF:850 14:12:50.2584
|>F13 200 OK (sdp)>|                  |  35 PF:851 14:12:50.7589
|                  |<(sdp) INVITE F14<|  36 PF:852 14:12:51.0319
|                  |>F15 200 OK (sdp)>|  36 PF:853 14:12:51.0321
|                  |<-------- ACK F16<|  36 PF:854 14:12:51.2078
|>F17 200 OK (sdp)>|                  |  35 PF:857 14:12:51.7583
|>F18 200 OK (sdp)>|                  |  35 PF:866 14:12:52.6052
|>F19 200 OK (sdp)>|                  |  35 PF:867 14:12:53.1587
|>F20 200 OK (sdp)>|                  |  35 PF:868 14:12:53.6602
|>F21 200 OK (sdp)>|                  |  35 PF:871 14:12:54.6596
|                  |                  |
|>F22 200 OK (sdp)>|                  |  35 PF:876 14:12:56.6595
|                  |                  |
|>F23 200 OK (sdp)>|                  |  35 PF:896 14:13:0.7237
|                  |                  |
|>F24 200 OK (sdp)>|                  |  35 PF:905 14:13:4.7235
|                  |                  |
|>F25 200 OK (sdp)>|                  |  35 PF:924 14:13:8.7555
|                  |                  |
|>F26 200 OK (sdp)>|                  |  35 PF:953 14:13:12.7825
|                  |                  |
|>F27 200 OK (sdp)>|                  |  35 PF:972 14:13:16.7818
|>F28 200 OK (sdp)>|                  |  35 PF:978 14:13:17.4519
|>F29 200 OK (sdp)>|                  |  35 PF:980 14:13:17.9811
|>F30 200 OK (sdp)>|                  |  35 PF:981 14:13:18.4819
|                  |                  |
|>F31 200 OK (sdp)>|                  |  35 PF:982 14:13:19.4819
|                  |                  |
|>F32 200 OK (sdp)>|                  |  35 PF:987 14:13:21.4818
|                  |                  |
|                  |<(sdp) INVITE F33<|  36 PF:1020 14:13:31.9238
|                  |>F34 200 OK (sdp)>|  36 PF:1021 14:13:31.9241
|                  |<-------- ACK F35<|  36 PF:1022 14:13:32.1068
 
================================================================================
 
     SIP MESSAGE 1        192.168.5.2:5060() -> 192.168.0.10:1062()
     UDP Frame 745      2/Dec/05 14:12:19.6626 TimeFromPreviousSipFrame=208.3534 TimeFromStart=208.3534 
INVITE sip:t3ls1818toRa1@192.168.1.114;transport=udp SIP/2.0 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp> 
Contact: <sip:Unknown@192.168.5.2> 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
CSeq: 102 INVITE 
User-Agent: Worldcall IP Services GW2 
Max-Forwards: 70 
Date: Fri, 02 Dec 2005 20:12:19 GMT 
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY 
Content-Type: application/sdp 
Content-Length: 216 
 
v=0 
o=root 27850 27850 IN IP4 192.168.5.2 
s=session 
c=IN IP4 192.168.5.2 
t=0 0 
m=audio 15932 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-16 
a=silenceSupp:off - - - - 
 
================================================================================
 
     SIP MESSAGE 2        192.168.5.2:5060() -> 192.168.0.10:1027()
     UDP Frame 746      2/Dec/05 14:12:19.6630 TimeFromPreviousSipFrame=0.0004 TimeFromStart=208.3538 
INVITE sip:t3ls1818toRb1@192.168.1.146;transport=udp SIP/2.0 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK40919c65;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp> 
Contact: <sip:Unknown@192.168.5.2> 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
CSeq: 102 INVITE 
User-Agent: Worldcall IP Services GW2 
Max-Forwards: 70 
Date: Fri, 02 Dec 2005 20:12:19 GMT 
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY 
Content-Type: application/sdp 
Content-Length: 216 
 
v=0 
o=root 27850 27850 IN IP4 192.168.5.2 
s=session 
c=IN IP4 192.168.5.2 
t=0 0 
m=audio 15556 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-16 
a=silenceSupp:off - - - - 
 
================================================================================
 
     SIP MESSAGE 3        192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 747      2/Dec/05 14:12:19.8197 TimeFromPreviousSipFrame=0.1567 TimeFromStart=208.5105 
SIP/2.0 100 Trying 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 4        192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 748      2/Dec/05 14:12:19.9582 TimeFromPreviousSipFrame=0.1385 TimeFromStart=208.6490 
SIP/2.0 180 Ringing 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Allow-Events: talk,hold,conference 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 5        192.168.5.2:5060() -> 192.168.0.10:1027()
     UDP Frame 751      2/Dec/05 14:12:20.0177 TimeFromPreviousSipFrame=0.0595 TimeFromStart=208.7085 
INVITE sip:t3ls1818toRb1@192.168.1.146;transport=udp SIP/2.0 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK40919c65;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp> 
Contact: <sip:Unknown@192.168.5.2> 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
CSeq: 102 INVITE 
User-Agent: Worldcall IP Services GW2 
Max-Forwards: 70 
Date: Fri, 02 Dec 2005 20:12:19 GMT 
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY 
Content-Type: application/sdp 
Content-Length: 216 
 
v=0 
o=root 27850 27850 IN IP4 192.168.5.2 
s=session 
c=IN IP4 192.168.5.2 
t=0 0 
m=audio 15556 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-16 
a=silenceSupp:off - - - - 
 
================================================================================
 
     SIP MESSAGE 6        192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 755      2/Dec/05 14:12:20.2032 TimeFromPreviousSipFrame=0.1855 TimeFromStart=208.8940 
SIP/2.0 100 Trying 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK40919c65;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
CSeq: 102 INVITE 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 7        192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 757      2/Dec/05 14:12:20.4572 TimeFromPreviousSipFrame=0.2540 TimeFromStart=209.1480 
SIP/2.0 180 Ringing 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK40919c65;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
CSeq: 102 INVITE 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Allow-Events: talk,hold,conference 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 8        192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 762      2/Dec/05 14:12:21.9770 TimeFromPreviousSipFrame=1.5198 TimeFromStart=210.6678 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK40919c65;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
CSeq: 102 INVITE 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1097023192 1097023192 IN IP4 192.168.1.146 
s=Polycom IP Phone 
c=IN IP4 192.168.1.146 
t=0 0 
m=audio 2256 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 9        192.168.5.2:5060() -> 192.168.0.10:1027()
     UDP Frame 763      2/Dec/05 14:12:21.9772 TimeFromPreviousSipFrame=0.0002 TimeFromStart=210.6680 
ACK sip:t3ls1818toRb1@192.168.1.146 SIP/2.0 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK772380df;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
To: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
Contact: <sip:Unknown@192.168.5.2> 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
CSeq: 102 ACK 
User-Agent: Worldcall IP Services GW2 
Max-Forwards: 70 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 10       192.168.5.2:5060() -> 192.168.0.10:1062()
     UDP Frame 764      2/Dec/05 14:12:21.9774 TimeFromPreviousSipFrame=0.0003 TimeFromStart=210.6682 
CANCEL sip:t3ls1818toRa1@192.168.1.114;transport=udp SIP/2.0 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp> 
Contact: <sip:Unknown@192.168.5.2> 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
CSeq: 102 CANCEL 
User-Agent: Worldcall IP Services GW2 
Max-Forwards: 70 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 11       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 847      2/Dec/05 14:12:49.7214 TimeFromPreviousSipFrame=27.7440 TimeFromStart=238.4123 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535467 1133535467 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 12       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 850      2/Dec/05 14:12:50.2584 TimeFromPreviousSipFrame=0.5370 TimeFromStart=238.9492 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535467 1133535467 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 13       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 851      2/Dec/05 14:12:50.7589 TimeFromPreviousSipFrame=0.5005 TimeFromStart=239.4497 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535467 1133535467 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 14       192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 852      2/Dec/05 14:12:51.0319 TimeFromPreviousSipFrame=0.2730 TimeFromStart=239.7227 
INVITE sip:Unknown@192.168.5.2 SIP/2.0 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK67e111ca6F4178FD 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
CSeq: 1 INVITE 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Supported: 100rel,replace 
Allow-Events: talk,hold,conference 
Max-Forwards: 70 
Content-Type: application/sdp 
Content-Length: 183 
 
v=0 
o=- 1097023193 1097023193 IN IP4 192.168.1.146 
s=Polycom IP Phone 
c=IN IP4 0.0.0.0 
t=0 0 
m=audio 2256 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 15       192.168.5.2:5060() -> 192.168.0.10:1027()
     UDP Frame 853      2/Dec/05 14:12:51.0321 TimeFromPreviousSipFrame=0.0003 TimeFromStart=239.7229 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK67e111ca6F4178FD;received=192.168.0.10 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
CSeq: 1 INVITE 
User-Agent: Worldcall IP Services GW2 
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY 
Max-Forwards: 70 
Contact: <sip:Unknown@192.168.5.2> 
Content-Type: application/sdp 
Content-Length: 216 
 
v=0 
o=root 27850 27851 IN IP4 192.168.5.2 
s=session 
c=IN IP4 192.168.5.2 
t=0 0 
m=audio 15556 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-16 
a=silenceSupp:off - - - - 
 
================================================================================
 
     SIP MESSAGE 16       192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 854      2/Dec/05 14:12:51.2078 TimeFromPreviousSipFrame=0.1757 TimeFromStart=239.8986 
ACK sip:Unknown@192.168.5.2 SIP/2.0 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK724449a8D4A23A8B 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
CSeq: 1 ACK 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Max-Forwards: 70 
Content-Length: 0 
 
 
================================================================================
 
     SIP MESSAGE 17       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 857      2/Dec/05 14:12:51.7583 TimeFromPreviousSipFrame=0.5505 TimeFromStart=240.4491 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535467 1133535467 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 18       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 866      2/Dec/05 14:12:52.6052 TimeFromPreviousSipFrame=0.8469 TimeFromStart=241.2961 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 19       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 867      2/Dec/05 14:12:53.1587 TimeFromPreviousSipFrame=0.5535 TimeFromStart=241.8495 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 20       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 868      2/Dec/05 14:12:53.6602 TimeFromPreviousSipFrame=0.5015 TimeFromStart=242.3510 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 21       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 871      2/Dec/05 14:12:54.6596 TimeFromPreviousSipFrame=0.9994 TimeFromStart=243.3504 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 22       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 876      2/Dec/05 14:12:56.6595 TimeFromPreviousSipFrame=1.9999 TimeFromStart=245.3503 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 23       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 896      2/Dec/05 14:13:0.7237 TimeFromPreviousSipFrame=4.0643 TimeFromStart=249.4145 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 24       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 905      2/Dec/05 14:13:4.7235 TimeFromPreviousSipFrame=3.9997 TimeFromStart=253.4143 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 25       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 924      2/Dec/05 14:13:8.7555 TimeFromPreviousSipFrame=4.0320 TimeFromStart=257.4463 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 26       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 953      2/Dec/05 14:13:12.7825 TimeFromPreviousSipFrame=4.0270 TimeFromStart=261.4733 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 27       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 972      2/Dec/05 14:13:16.7818 TimeFromPreviousSipFrame=3.9993 TimeFromStart=265.4726 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535468 1133535468 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 28       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 978      2/Dec/05 14:13:17.4519 TimeFromPreviousSipFrame=0.6701 TimeFromStart=266.1427 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535469 1133535469 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 29       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 980      2/Dec/05 14:13:17.9811 TimeFromPreviousSipFrame=0.5292 TimeFromStart=266.6719 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535469 1133535469 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 30       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 981      2/Dec/05 14:13:18.4819 TimeFromPreviousSipFrame=0.5007 TimeFromStart=267.1727 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535469 1133535469 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 31       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 982      2/Dec/05 14:13:19.4819 TimeFromPreviousSipFrame=1.0001 TimeFromStart=268.1727 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535469 1133535469 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 32       192.168.0.10:1062() -> 192.168.5.2:5060()
     UDP Frame 987      2/Dec/05 14:13:21.4818 TimeFromPreviousSipFrame=1.9999 TimeFromStart=270.1726 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK73765474;rport 
From: "Unknown" <sip:Unknown@192.168.5.2>;tag=as78a740a2 
To: <sip:t3ls1818toRa1@192.168.1.114;transport=udp>;tag=EC303825-E6308B04 
CSeq: 102 INVITE 
Call-ID: 2221562452c60438275883e7336755bd@192.168.5.2 
Contact: <sip:t3ls1818toRa1@192.168.1.114> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Content-Type: application/sdp 
Content-Length: 189 
 
v=0 
o=- 1133535469 1133535469 IN IP4 192.168.1.114 
s=Polycom IP Phone 
c=IN IP4 192.168.1.114 
t=0 0 
m=audio 2236 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 33       192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 1020     2/Dec/05 14:13:31.9238 TimeFromPreviousSipFrame=10.4420 TimeFromStart=280.6146 
INVITE sip:Unknown@192.168.5.2 SIP/2.0 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK8401d81eC5EBA671 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
CSeq: 2 INVITE 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Supported: 100rel,replace 
Allow-Events: talk,hold,conference 
Max-Forwards: 70 
Content-Type: application/sdp 
Content-Length: 251 
 
v=0 
o=- 1097023194 1097023194 IN IP4 192.168.1.146 
s=Polycom IP Phone 
c=IN IP4 192.168.1.146 
t=0 0 
a=sendrecv 
m=audio 2256 RTP/AVP 0 8 18 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:8 PCMA/8000 
a=rtpmap:18 G729/8000 
a=rtpmap:101 telephone-event/8000 
 
================================================================================
 
     SIP MESSAGE 34       192.168.5.2:5060() -> 192.168.0.10:1027()
     UDP Frame 1021     2/Dec/05 14:13:31.9241 TimeFromPreviousSipFrame=0.0003 TimeFromStart=280.6149 
SIP/2.0 200 OK 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK8401d81eC5EBA671;received=192.168.0.10 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
CSeq: 2 INVITE 
User-Agent: Worldcall IP Services GW2 
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY 
Max-Forwards: 70 
Contact: <sip:Unknown@192.168.5.2> 
Content-Type: application/sdp 
Content-Length: 216 
 
v=0 
o=root 27850 27852 IN IP4 192.168.5.2 
s=session 
c=IN IP4 192.168.5.2 
t=0 0 
m=audio 15556 RTP/AVP 0 101 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-16 
a=silenceSupp:off - - - - 
 
================================================================================
 
     SIP MESSAGE 35       192.168.0.10:1027() -> 192.168.5.2:5060()
     UDP Frame 1022     2/Dec/05 14:13:32.1068 TimeFromPreviousSipFrame=0.1827 TimeFromStart=280.7976 
ACK sip:Unknown@192.168.5.2 SIP/2.0 
Via: SIP/2.0/UDP 192.168.1.146;branch=z9hG4bK4e658b3c4C71C53F 
From: <sip:t3ls1818toRb1@192.168.1.146;transport=udp>;tag=88C49A5A-B87CE95F 
To: "Unknown" <sip:Unknown@192.168.5.2>;tag=as56a4d6bd 
CSeq: 2 ACK 
Call-ID: 7b253c54003c9a193995208f5407dc6a@192.168.5.2 
Contact: <sip:t3ls1818toRb1@192.168.1.146> 
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER 
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041 
Max-Forwards: 70 
Content-Length: 0 
 
 
================================================================================