[Serusers] HELP: Why does SER not absorb this re-INVITE?

Sun Mar 20 14:31:35 CET 2005

Hi all.

I have a big problem and I really need some help. re-INVITE messages
are not properly processed during __random__ call durations. Sometimes
a call can exceed 1 hour and sometimes a call is only two minutes,
then ser improperly processes a re-INVITE and a 408 Request Timeout is
sent back to the Sonus GW, which then drops the call.

Attached is a partial call log that begins with a re-INVITE.

NOTE: this is __NOT__ the first re-INVITE of this call. This call
lasted more than 30 minutes and re-INVITEs were sent on a 2 minute
interval.

Anyhow, the re-INVITE is processed and the SIP phone ACKed it, however
another re-INVITE got sent from the Sonus GW which ser incorrectly
tried to send to the SIP UA. The SIP UA correctly ignored the
re-INVITE since it just ACKed it.

SER retransmits the re-INVITE to the SIP UA until the fr_invite timer
expires, then it sends a 408 Request Timeout back to the Sonus GW,
which then disconnects the call and sends ser a BYE message.

Is this a bug in the ser TM module? Shouldn't ser just absorb the
re-INVITE since it just ACKed it rather than trying to send the
re-INVITE to the SIP UA?

The Sonus guys say that this is an error in the ser SIP stack.

Please help. I'm really stuck with this one.

Regards,
Paul
-------------- next part --------------
U 2005/03/19 11:12:00.975247 216.229.127.60:5060 -> 10.3.0.221:5060
INVITE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bKf7bde5e04ab-d8ee8ecc.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 INVITE.
Max-Forwards: 69.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 248.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 216.229.118.101.
t=0 0.
m=audio 17812 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:12:00.978029 10.3.0.221:5060 -> 216.229.127.60:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bKf7bde5e04ab-d8ee8ecc.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 INVITE.
Content-Length: 0.
.

#
U 2005/03/19 11:12:00.978139 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK6095.c5e65715.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bKf7bde5e04ab-d8ee8ecc.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:12:01.191163 66.90.50.230:5060 -> 10.3.0.221:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK6095.c5e65715.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bKf7bde5e04ab-d8ee8ecc.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Record-Route: <sip:216.229.127.60:5060;lr>.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 INVITE.
User-Agent: Grandstream BT100 1.0.5.22.
Contact: <sip:3212514236 at 172.16.1.18;user=phone>.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Type: application/sdp.
Supported: replaces.
Content-Length: 217.
.
v=0.
o=3212514236 8000 8020 IN IP4 172.16.1.18.
s=SIP Call.
c=IN IP4 172.16.1.18.
t=0 0.
m=audio 5004 RTP/AVP 18 101.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=ptime:20.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-11.

#
U 2005/03/19 11:12:01.193221 10.3.0.221:5060 -> 216.229.127.60:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bKf7bde5e04ab-d8ee8ecc.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Record-Route: <sip:216.229.127.60:5060;lr>.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 INVITE.
User-Agent: Grandstream BT100 1.0.5.22.
Contact: <sip:3212514236 at 66.90.50.230:5060;user=phone>.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Type: application/sdp.
Supported: replaces.
Content-Length: 217.
P-hint: NATed Reply.
.
v=0.
o=3212514236 8000 8020 IN IP4 172.16.1.18.
s=SIP Call.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=ptime:20.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-11.

#
U 2005/03/19 11:12:01.271300 216.229.127.60:5060 -> 10.3.0.221:5060
ACK sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK023478189c606358.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 ACK.
Max-Forwards: 69.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Content-Length: 0.
.

#
U 2005/03/19 11:12:01.271682 10.3.0.221:5060 -> 66.90.50.230:5060
ACK sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK023478189c606358.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023478189c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14918 ACK.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Content-Length: 0.
P-hint: Loose_Route.
.

########################################################################################################
U 2005/03/19 11:14:01.299130 216.229.127.60:5060 -> 10.3.0.221:5060
INVITE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 69.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 248.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 216.229.118.101.
t=0 0.
m=audio 17812 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:14:01.301186 10.3.0.221:5060 -> 216.229.127.60:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Content-Length: 0.
.

#
U 2005/03/19 11:14:01.301327 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:14:01.416042 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:14:03.436047 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

##
U 2005/03/19 11:14:07.476044 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:14:11.516074 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 2005/03/19 11:14:15.556042 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

##
U 2005/03/19 11:14:19.596051 10.3.0.221:5060 -> 66.90.50.230:5060
INVITE sip:3212514236 at 66.90.50.230;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bK5095.9db7d786.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Max-Forwards: 16.
Contact: sip:4075660914 at 216.229.118.76:4060.
Record-Route: <sip:216.229.127.60:5060;lr>.
Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO.
Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay.
Supported: timer.
Session-Expires: 240;refresher=uac.
Content-Disposition: session;handling=required.
Content-Type: application/sdp.
Content-Length: 243.
P-hint: Loose_Route.
P-hint: NATed re-INVITE.
.
v=0.
o=Sonus_UAC 3174 11674 IN IP4 216.229.118.76.
s=SIP Media Capabilities.
c=IN IP4 10.3.0.221.
t=0 0.
m=audio 35366 RTP/AVP 18 101.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

##
U 2005/03/19 11:14:22.626092 10.3.0.221:5060 -> 216.229.127.60:5060
SIP/2.0 408 Request Timeout.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023564be9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 INVITE.
Content-Length: 0.
.

#
U 2005/03/19 11:14:22.669589 216.229.127.60:5060 -> 10.3.0.221:5060
ACK sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK948d9f13945-93eca6cd.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14919 ACK.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Content-Length: 0.
.

#
U 2005/03/19 11:14:22.687966 216.229.127.60:5060 -> 10.3.0.221:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 69.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Supported: 100rel, timer.
Content-Length: 0.
.

#
U 2005/03/19 11:14:22.689750 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

##
U 2005/03/19 11:14:23.274820 216.229.127.60:5060 -> 10.3.0.221:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 69.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Supported: 100rel, timer.
Content-Length: 0.
.

#
U 2005/03/19 11:14:23.636045 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

#############
U 2005/03/19 11:14:25.657623 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

#
U 2005/03/19 11:14:27.387147 216.229.127.60:5060 -> 10.3.0.221:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 69.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Supported: 100rel, timer.
Content-Length: 0.
.

#
U 2005/03/19 11:14:29.696040 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

#######
U 2005/03/19 11:14:33.736033 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

##
U 2005/03/19 11:14:35.469935 216.229.127.60:5060 -> 10.3.0.221:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 69.
Record-Route: <sip:216.229.127.60:5060;lr>.
Route: <sip:10.3.0.221:5060;ftag=7c0456c2c49ed845;lr>.
Supported: 100rel, timer.
Content-Length: 0.
.

#
U 2005/03/19 11:14:37.776044 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

##
U 2005/03/19 11:14:41.816043 10.3.0.221:5060 -> 66.90.50.230:5060
BYE sip:3212514236 at 66.90.50.230:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.221;ftag=0b845f52;lr>.
Via: SIP/2.0/UDP 10.3.0.221;branch=z9hG4bKaf85.dd9e79e7.0.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Max-Forwards: 16.
Record-Route: <sip:216.229.127.60:5060;lr>.
Supported: 100rel, timer.
Content-Length: 0.
P-hint: Loose_Route.
.

#
U 2005/03/19 11:14:44.846086 10.3.0.221:5060 -> 216.229.127.60:5060
SIP/2.0 408 Request Timeout.
Via: SIP/2.0/UDP 216.229.127.60:5060;branch=z9hG4bK4ba739eb84a-70fc74a7.
Via: SIP/2.0/UDP 216.229.118.76:4060;branch=z9hG4bK023636bd9c606358.
To: "Paul Hazlett" <sip:3212514236 at 216.229.127.60;user=phone>;tag=7c0456c2c49ed845.
From: <sip:4075660914 at sip.mycompany.com;user=phone>;tag=0b845f52.
Call-ID: fc2e388f89db4205 at 172.16.1.18.
CSeq: 14920 BYE.
Content-Length: 0.
.