[Serusers] Re: SER CANCEL Processing

26 May 2005

any ideas anyone? seems like SER does not respond to
CANCEL requests and eventually takes the failure
route. 

I have the following in my failure route, but it never
gets hit, since SER does not send the 200 OK back or
pass the CANCEL message forward. log file attached.

failure_route[1] 
{      
    if(t_check_status("487")) { 
     # don't continue on cancellation
     xlog("L_WARN", "OH OH OH\n");
     break;
   }

ac

--- a c &lt;lra101(a)yahoo.com&gt; wrote:

...
  Seems like SER does not respond back to CANCEL 
 Requests. Is this a issue / some config problem on
 my
 side?  ngrep traces attached

 interface: eth0 (192.168.0.0/255.255.255.0)
 filter: ip and ( port 5060 )
 #
 U 192.168.0.2:5062 -> 192.168.0.5:5060
   INVITE sip:9999999999@voip.com SIP/2.0..Via:
 SIP/2.0/UDP 192.168.0.2:5062;r

 port;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
...
  102 <sip:102@voi
   p.com:5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>..Contact: <sip:10
   2@192.168.0.2:5062>..Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88(a)192.168.
   0.2..CSeq: 940 INVITE..Max-Forwards:
 70..Content-Type: application/sdp..Use
   r-Agent: X-Lite release 1103m..Content-Length:
 258....v=0..o=102 7659613 76
   59633 IN IP4 192.168.0.2..s=X-Lite..c=IN IP4
 192.168.0.2..t=0 0..m=audio 80
   00 RTP/AVP 0 8 3 98 96..a=rtpmap:0
 pcmu/8000..a=rtpmap:8 pcma/8000..a=rtpma
   p:3 gsm/8000..a=rtpmap:98 iLBC/8000..a=rtpmap:96
 telephone-event/8000..a=fm
   tp:96 0-15..                                      

 #
 U 192.168.0.5:5060 -> 192.168.0.2:5062
   SIP/2.0 100 trying -- your call is important to
 us..Via: SIP/2.0/UDP 192.16

 8.0.2:5062;rport=5062;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
...
     102
<sip:102@voip.com:5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>.
   .Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88@192.168.0.2..CSeq:
...
  940 INVIT
   E..Server: Sip EXpress router (0.9.2
 (i386/linux))..Content-Length: 0..Warn
   ing: 392 192.168.0.5:5060 "Noisy feedback tells: 
 pid=2943 req_src_ip=192.1
   68.0.2 req_src_port=5062
 in_uri=sip:9999999999@voip.com out_uri=sip:9999999
   999(a)voip.com via_cnt==1"....                      

 #
 U 192.168.0.5:5060 -> 192.168.0.3:5060
   INVITE sip:9999999999@voip.com
 SIP/2.0..Record-Route: <sip:192.168.0.5;ftag
   =3282942385;lr=on>..Via: SIP/2.0/UDP
 192.168.0.5;branch=z9hG4bKe034.1018c5d
   1.0..Via: SIP/2.0/UDP
 192.168.0.2:5062;rport=5062;branch=z9hG4bKE29503D9D8C
...
    F4A479B6D9DDB17C5CFC1..From: 102
 <sip:102@voip.com:5062>;tag=3282942385..To
   : <sip:9999999999@voip.com>..Contact:
 <sip:102@192.168.0.2:5062>..Call-ID: 

 29469D19-CDF1-49ED-8245-A67E1B1DBB88@192.168.0.2..CSeq:
...
  940 INVITE..Max-For
   wards: 16..Content-Type:
 application/sdp..User-Agent: X-Lite release 1103m.
   .Content-Length: 258....v=0..o=102 7659613 7659633
 IN IP4 192.168.0.2..s=X-
   Lite..c=IN IP4 192.168.0.2..t=0 0..m=audio 8000
 RTP/AVP 0 8 3 98 96..a=rtpm
   ap:0 pcmu/8000..a=rtpmap:8 pcma/8000..a=rtpmap:3
 gsm/8000..a=rtpmap:98 iLBC
   /8000..a=rtpmap:96 telephone-event/8000..a=fmtp:96
 0-15..                  
 #
 U 192.168.0.3:5060 -> 192.168.0.5:5060
   SIP/2.0 100 Trying..From: 102
 <sip:102@voip.com:5062>;tag=3282942385..To: <
   sip:9999999999@voip.com>..Call-Id:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88@192
   .168.0.2..Cseq: 940 INVITE..Via: SIP/2.0/UDP
 192.168.0.5;branch=z9hG4bKe034
   .1018c5d1.0..Via: SIP/2.0/UDP
 192.168.0.2:5062;rport=5062;branch=z9hG4bKE29
   503D9D8CF4A479B6D9DDB17C5CFC1..Content-Length:
 0....

 #
 U 192.168.0.3:5060 -> 192.168.0.5:5060
   SIP/2.0 180 Ringing..From: 102
 <sip:102@voip.com:5062>;tag=3282942385..To: 
   <sip:9999999999@voip.com>;tag=27378..Call-Id:
 29469D19-CDF1-49ED-8245-A67E1
   B1DBB88@192.168.0.2..Cseq: 940 INVITE..Via:
 SIP/2.0/UDP 192.168.0.5;branch=
   z9hG4bKe034.1018c5d1.0..Via: SIP/2.0/UDP
 192.168.0.2:5062;rport=5062;branch
   =z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..Date:
 Mon,
 23 May 2005 22:15:14 G
   MT..Contact: sip:192.168.0.3..User-Agent:
 sipX/2.5.2
 (WinNT)..Accept-Langua
   ge: en..Allow: INVITE, ACK, CANCEL, BYE, REFER,
 OPTIONS, NOTIFY, REGISTER, 
   SUBSCRIBE..Supported: sip-cc, sip-cc-01, timer,
 replaces..Content-Length: 0
   ....                                              

 #
 U 192.168.0.5:5060 -> 192.168.0.2:5062
   SIP/2.0 180 Ringing..From: 102
 <sip:102@voip.com:5062>;tag=3282942385..To: 
   <sip:9999999999@voip.com>;tag=27378..Call-Id:
 29469D19-CDF1-49ED-8245-A67E1
   B1DBB88@192.168.0.2..Cseq: 940 INVITE..Via:
 SIP/2.0/UDP 192.168.0.2:5062;rp

 ort=5062;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..Date:
...
  Mon, 23 May 
   2005 22:15:14 GMT..Contact:
 sip:192.168.0.3..User-Agent: sipX/2.5.2 (WinNT)
   ..Accept-Language: en..Allow: INVITE, ACK, CANCEL,
 BYE, REFER, OPTIONS, NOT
   IFY, REGISTER, SUBSCRIBE..Supported: sip-cc,
 sip-cc-01, timer, replaces..Co
   ntent-Length: 0....                               

 #
 U 192.168.0.2:5062 -> 192.168.0.5:5060
   CANCEL sip:9999999999@voip.com SIP/2.0..Via:
 SIP/2.0/UDP 192.168.0.2:5062;r

 port;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
...
  102 <sip:102@voi
   p.com:5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>..Contact: <sip:10
   2@192.168.0.2:5062>..Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88(a)192.168.
   0.2..CSeq: 940 CANCEL..Max-Forwards:
 70..User-Agent:
 X-Lite release 1103m..
   Content-Length: 0....                             

 #
 U 192.168.0.2:5062 -> 192.168.0.5:5060
   CANCEL sip:9999999999@voip.com SIP/2.0..Via:
 SIP/2.0/UDP 192.168.0.2:5062;r

 port;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
...
  102 <sip:102@voi
   p.com:5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>..Contact: <sip:10
   2@192.168.0.2:5062>..Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88(a)192.168.
   0.2..CSeq: 940 CANCEL..Max-Forwards:
 70..User-Agent:
 X-Lite release 1103m..
   Content-Length: 0....                             

 #
 U 192.168.0.2:5062 -> 192.168.0.5:5060
   CANCEL sip:9999999999@voip.com SIP/2.0..Via:
 SIP/2.0/UDP 192.168.0.2:5062;r

 port;branch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
...
  102 <sip:102@voi
   p.com:5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>..Contact: <sip:10
   2@192.168.0.2:5062>..Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88(a)192.168.
   0.2..CSeq: 940 CANCEL..Max-Forwards:
 70..User-Agent:
 X-Lite release 1103m..
   Content-Length: 0....                             

 #
 U 192.168.0.5:5060 -> 192.168.0.2:5062
   SIP/2.0 408 Request Timeout..Via: SIP/2.0/UDP
 192.168.0.2:5062;rport=5062;b

 ranch=z9hG4bKE29503D9D8CF4A479B6D9DDB17C5CFC1..From:
 102 <sip:102@voip.com:
   5062>;tag=3282942385..To:
 <sip:9999999999@voip.com>;tag=a6a1c5f60faecf035a1
   ae5b6e96e979a-6e9f..Call-ID:
 29469D19-CDF1-49ED-8245-A67E1B1DBB88(a)192.168.0
   .2..CSeq: 940 INVITE..Server: Sip EXpress router
 (0.9.2 (i386/linux))..Cont
   ent-Length: 0..Warning: 392 192.168.0.5:5060
 "Noisy
 feedback tells:  pid=29
   51 req_src_ip=192.168.0.2 req_src_port=5062
 in_uri=sip:9999999999@voip.com 
  === message truncated ===

__________________________________________________
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Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

<<< Log from 192.168.0.5 started May 26, 2005, 10:53:10 >>>
#                                                                               
U 192.168.0.2:5062 -> 192.168.0.5:5060
  INVITE sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.2:5062;r
  port;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voi
  p.com:5062>;tag=2354273279..To: <sip:9999999999@voip.com>..Contact: <sip:10
  2@192.168.0.2:5062>..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.
  0.2..CSeq: 55437 INVITE..Max-Forwards: 70..Content-Type: application/sdp..U
  ser-Agent: X-Lite release 1103m..Content-Length: 262....v=0..o=102 24393782
  4 243937884 IN IP4 192.168.0.2..s=X-Lite..c=IN IP4 192.168.0.2..t=0 0..m=au
  dio 8000 RTP/AVP 0 8 3 98 96..a=rtpmap:0 pcmu/8000..a=rtpmap:8 pcma/8000..a
  =rtpmap:3 gsm/8000..a=rtpmap:98 iLBC/8000..a=rtpmap:96 telephone-event/8000
  ..a=fmtp:96 0-15..                                                         
#
U 192.168.0.5:5060 -> 192.168.0.2:5062
  SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP 192.16
  8.0.2:5062;rport=5062;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From:
   102 <sip:102@voip.com:5062>;tag=2354273279..To: <sip:9999999999@voip.com>.
  .Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF@192.168.0.2..CSeq: 55437 INV
  ITE..Server: Sip EXpress router (0.9.2 (i386/linux))..Content-Length: 0..Wa
  rning: 392 192.168.0.5:5060 "Noisy feedback tells:  pid=991 req_src_ip=192.
  168.0.2 req_src_port=5062 in_uri=sip:9999999999@voip.com out_uri=sip:999999
  9999(a)voip.com via_cnt==1"....                                              
#
U 192.168.0.5:5060 -> 192.168.0.2:5060
  INVITE sip:9999999999@voip.com SIP/2.0..Record-Route: <sip:192.168.0.5;ftag
  =2354273279;lr=on>..Via: SIP/2.0/UDP 192.168.0.5;branch=z9hG4bK078b.d58ef0f
  1.0..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;branch=z9hG4bKC51A010562E
  F4A59816876A6DEACF5BF..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To
  : <sip:9999999999@voip.com>..Contact: <sip:102@192.168.0.2:5062>..Call-ID: 
  60D7D848-8486-4E68-8191-05684A2A3EEF@192.168.0.2..CSeq: 55437 INVITE..Max-F
  orwards: 16..Content-Type: application/sdp..User-Agent: X-Lite release 1103
  m..Content-Length: 262....v=0..o=102 243937824 243937884 IN IP4 192.168.0.2
  ..s=X-Lite..c=IN IP4 192.168.0.2..t=0 0..m=audio 8000 RTP/AVP 0 8 3 98 96..
  a=rtpmap:0 pcmu/8000..a=rtpmap:8 pcma/8000..a=rtpmap:3 gsm/8000..a=rtpmap:9
  8 iLBC/8000..a=rtpmap:96 telephone-event/8000..a=fmtp:96 0-15..            
#
U 192.168.0.2:5060 -> 192.168.0.5:5060
  SIP/2.0 100 Trying..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To: <
  sip:9999999999@voip.com>..Call-Id: 60D7D848-8486-4E68-8191-05684A2A3EEF@192
  .168.0.2..Cseq: 55437 INVITE..Via: SIP/2.0/UDP 192.168.0.5;branch=z9hG4bK07
  8b.d58ef0f1.0..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;branch=z9hG4bKC
  51A010562EF4A59816876A6DEACF5BF..Content-Length: 0....                     
#
U 192.168.0.2:5060 -> 192.168.0.5:5060
  SIP/2.0 180 Ringing..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To: 
  <sip:9999999999@voip.com>;tag=19901..Call-Id: 60D7D848-8486-4E68-8191-05684
  A2A3EEF@192.168.0.2..Cseq: 55437 INVITE..Via: SIP/2.0/UDP 192.168.0.5;branc
  h=z9hG4bK078b.d58ef0f1.0..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;bran
  ch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..Date: Thu, 26 May 2005 15:53:13
   GMT..Contact: sip:192.168.0.2..User-Agent: sipX/2.5.2 (WinNT)..Accept-Lang
  uage: en..Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, REGISTER
  , SUBSCRIBE..Supported: sip-cc, sip-cc-01, timer, replaces..Content-Length:
   0....                                                                     
#
U 192.168.0.5:5060 -> 192.168.0.2:5062
  SIP/2.0 180 Ringing..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To: 
  <sip:9999999999@voip.com>;tag=19901..Call-Id: 60D7D848-8486-4E68-8191-05684
  A2A3EEF@192.168.0.2..Cseq: 55437 INVITE..Via: SIP/2.0/UDP 192.168.0.2:5062;
  rport=5062;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..Date: Thu, 26 Ma
  y 2005 15:53:13 GMT..Contact: sip:192.168.0.2..User-Agent: sipX/2.5.2 (WinN
  T)..Accept-Language: en..Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, N
  OTIFY, REGISTER, SUBSCRIBE..Supported: sip-cc, sip-cc-01, timer, replaces..
  Content-Length: 0....                                                      
#
U 192.168.0.2:5062 -> 192.168.0.5:5060
  CANCEL sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.2:5062;r
  port;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voi
  p.com:5062>;tag=2354273279..To: <sip:9999999999@voip.com>..Contact: <sip:10
  2@192.168.0.2:5062>..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.
  0.2..CSeq: 55437 CANCEL..Max-Forwards: 70..User-Agent: X-Lite release 1103m
  ..Content-Length: 0....                                                    
#
U 192.168.0.2:5062 -> 192.168.0.5:5060
  CANCEL sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.2:5062;r
  port;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voi
  p.com:5062>;tag=2354273279..To: <sip:9999999999@voip.com>..Contact: <sip:10
  2@192.168.0.2:5062>..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.
  0.2..CSeq: 55437 CANCEL..Max-Forwards: 70..User-Agent: X-Lite release 1103m
  ..Content-Length: 0....                                                    
#
U 192.168.0.2:5062 -> 192.168.0.5:5060
  CANCEL sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.2:5062;r
  port;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voi
  p.com:5062>;tag=2354273279..To: <sip:9999999999@voip.com>..Contact: <sip:10
  2@192.168.0.2:5062>..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.
  0.2..CSeq: 55437 CANCEL..Max-Forwards: 70..User-Agent: X-Lite release 1103m
  ..Content-Length: 0....                                                       
#                                                                               
U 192.168.0.5:5060 -> 192.168.0.2:5062                                          
  SIP/2.0 408 Request Timeout..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;b   
  ranch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voip.com:   
  5062>;tag=2354273279..To: <sip:9999999999@voip.com>;tag=a6a1c5f60faecf035a1   
  ae5b6e96e979a-7cb8..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.0   
  .2..CSeq: 55437 INVITE..Server: Sip EXpress router (0.9.2 (i386/linux))..Co   
  ntent-Length: 0..Warning: 392 192.168.0.5:5060 "Noisy feedback tells:  pid=   
  996 req_src_ip=192.168.0.2 req_src_port=5062 in_uri=sip:9999999999@voip.com   
   out_uri=sip:9999999999@voip.com via_cnt==0"....                              
#                                                                               
U 192.168.0.5:5060 -> 192.168.0.2:5060                                          
  CANCEL sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.5;branch   
  =z9hG4bK078b.d58ef0f1.0..From: 102 <sip:102@voip.com:5062>;tag=2354273279..   
  Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF@192.168.0.2..To: <sip:9999999   
  999@voip.com>..CSeq: 55437 CANCEL..User-Agent: Sip EXpress router(0.9.2 (i3   
  86/linux))..Content-Length: 0....                                             
#                                                                               
U 192.168.0.2:5060 -> 192.168.0.5:5060                                          
  SIP/2.0 200 OK..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To: <sip:   
  9999999999@voip.com>..Call-Id: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168   
  .0.2..Cseq: 55437 CANCEL..Via: SIP/2.0/UDP 192.168.0.5;branch=z9hG4bK078b.d   
  58ef0f1.0..Content-Length: 0....                                              
#                                                                               
U 192.168.0.2:5060 -> 192.168.0.5:5060                                          
  SIP/2.0 487 Request Terminated..From: 102 <sip:102@voip.com:5062>;tag=23542   
  73279..To: <sip:9999999999@voip.com>;tag=19901..Call-Id: 60D7D848-8486-4E68   
  -8191-05684A2A3EEF@192.168.0.2..Cseq: 55437 INVITE..Via: SIP/2.0/UDP 192.16   
  8.0.5;branch=z9hG4bK078b.d58ef0f1.0..Via: SIP/2.0/UDP 192.168.0.2:5062;rpor   
  t=5062;branch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..Date: Thu, 26 May 20   
  05 15:53:43 GMT..Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, R   
  EGISTER, SUBSCRIBE..User-Agent: sipX/2.5.2 (WinNT)..Accept-Language: en..Su   
  pported: sip-cc, sip-cc-01, timer, replaces..Contact: sip:192.168.0.2..Cont   
  ent-Length: 0....                                                             
#                                                                               
U 192.168.0.5:5060 -> 192.168.0.2:5060                                          
  ACK sip:9999999999@voip.com SIP/2.0..Via: SIP/2.0/UDP 192.168.0.5;branch=z9   
  hG4bK078b.d58ef0f1.0..From: 102 <sip:102@voip.com:5062>;tag=2354273279..Cal   
  l-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF@192.168.0.2..To: <sip:9999999999   
  @voip.com>;tag=19901..CSeq: 55437 ACK..User-Agent: Sip EXpress router(0.9.2   
   (i386/linux))..Content-Length: 0....                                         
#                                                                               
U 192.168.0.2:5060 -> 192.168.0.5:5060                                          
  SIP/2.0 200 OK..From: 102 <sip:102@voip.com:5062>;tag=2354273279..To: <sip:   
  9999999999@voip.com>..Call-Id: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168   
  .0.2..Cseq: 55437 CANCEL..Contact: <sip:9999999999@192.168.0.2:5060>..Via:    
  SIP/2.0/UDP 192.168.0.5;branch=z9hG4bK078b.d58ef0f1.0..Date: Thu, 26 May 20   
  05 15:53:43 GMT..Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, R   
  EGISTER, SUBSCRIBE..User-Agent: sipX/2.5.2 (WinNT)..Accept-Language: en..Su   
  pported: sip-cc, sip-cc-01, timer, replaces..Content-Length: 0....            
#                                                                               
U 192.168.0.5:5060 -> 192.168.0.2:5062                                          
  SIP/2.0 408 Request Timeout..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;b   
  ranch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voip.com:   
  5062>;tag=2354273279..To: <sip:9999999999@voip.com>;tag=a6a1c5f60faecf035a1   
  ae5b6e96e979a-7cb8..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.0   
  .2..CSeq: 55437 INVITE..Server: Sip EXpress router (0.9.2 (i386/linux))..Co   
  ntent-Length: 0..Warning: 392 192.168.0.5:5060 "Noisy feedback tells:  pid=   
  996 req_src_ip=192.168.0.2 req_src_port=5062 in_uri=sip:9999999999@voip.com   
   out_uri=sip:9999999999@voip.com via_cnt==0"....                              
#                                                                               
U 192.168.0.5:5060 -> 192.168.0.2:5062                                          
  SIP/2.0 408 Request Timeout..Via: SIP/2.0/UDP 192.168.0.2:5062;rport=5062;b   
  ranch=z9hG4bKC51A010562EF4A59816876A6DEACF5BF..From: 102 <sip:102@voip.com:   
  5062>;tag=2354273279..To: <sip:9999999999@voip.com>;tag=a6a1c5f60faecf035a1   
  ae5b6e96e979a-7cb8..Call-ID: 60D7D848-8486-4E68-8191-05684A2A3EEF(a)192.168.0   
  .2..CSeq: 55437 INVITE..Server: Sip EXpress router (0.9.2 (i386/linux))..Co   
  ntent-Length: 0..Warning: 392 192.168.0.5:5060 "Noisy feedback tells:  pid=   
  996 req_src_ip=192.168.0.2 req_src_port=5062 in_uri=sip:9999999999@voip.com   
   out_uri=sip:9999999999@voip.com via_cnt==0"....                              
<<< Log from 192.168.0.5 ended May 26, 2005, 10:54:17 >>>

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[Serusers] Re: SER CANCEL Processing