Jan,

The failure_route is set up for the new leg. In this test, I cancelled the call before the new leg was set up. Below is the SIP message log for the call. It does show everything worked properly (as far as I can tell). The only funny thing is the very last two (2) messages are the Busy/ACK which were from the original leg of the call.

Regards,
Paul

U 2005/06/22 11:30:09.877341 71.99.100.101:1105 -> 10.2.20.21:5060
INVITE sip:3215550000@sip.mycompany.com SIP/2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK845928821.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 300 INVITE.
Contact: <sip:4075559999@10.99.47.102:5060>.
max-forwards: 70.
Allow: INVITE, ACK, CANCEL, BYE, REFER, NOTIFY.
Content-Type: application/sdp.
Content-Length:   178.
.
v=0.
o=- 10231 3023 IN IP4 10.99.47.102.
s=-.
c=IN IP4 10.99.47.102.
t=0 0.
m=audio 13456 RTP/AVP 0 8 2 4 18 101.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
 
 
U 2005/06/22 11:30:09.886368 10.2.20.21:5060 -> 71.99.100.101:1105
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK845928821;rport=1105;received=71.99.100.101.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=1fe477f7999553e49c27ea343e9a9216.a61e.
Call-ID: 1206868322@10.99.47.102.
CSeq: 300 INVITE.
Proxy-Authenticate: Digest realm="sip.mycompany.com", nonce="42b9852d9bf1f9e07dce81b5f490cd7db9c3a5cb", qop="auth".
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.039330 71.99.100.101:1105 -> 10.2.20.21:5060
ACK sip:3215550000@sip.mycompany.com SIP/2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK845928821.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=1fe477f7999553e49c27ea343e9a9216.a61e.
Call-ID: 1206868322@10.99.47.102.
CSeq: 300 ACK.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.161309 71.99.100.101:1105 -> 10.2.20.21:5060
INVITE sip:3215550000@sip.mycompany.com SIP/2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
Contact: <sip:4075559999@10.99.47.102:5060>.
Proxy-Authorization: Digest username="4075559999", realm="sip.mycompany.com", nonce="42b9852d9bf1f9e07dce81b5f490cd7db9c3a5cb", uri="sip:3215550000@sip.mycompany.com", response="4d1076d3f8b4e348ea1666ec45351a42", algorithm=MD5, cnonce="2bddf808d944c1ac18add98d49b8c031", qop=auth, nc=00000005.
max-forwards: 70.
Allow: INVITE, ACK, CANCEL, BYE, REFER, NOTIFY.
Content-Type: application/sdp.
Content-Length:   178.
.
v=0.
o=- 10231 3023 IN IP4 10.99.47.102.
s=-.
c=IN IP4 10.99.47.102.
t=0 0.
m=audio 13456 RTP/AVP 0 8 2 4 18 101.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
 
 
U 2005/06/22 11:30:10.226992 10.2.20.21:5060 -> 71.99.100.101:1105
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK256996988;rport=1105;received=71.99.100.101.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.227613 10.2.20.21:5060 -> 66.90.46.29:9534
INVITE sip:3215550000@66.90.46.29:9534;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.42:5060;lr>.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
Contact: <sip:4075559999@71.99.100.101:1105>.
max-forwards: 16.
Allow: INVITE, ACK, CANCEL, BYE, REFER, NOTIFY.
Content-Type: application/sdp.
Content-Length: 175.
P-hint: Local Destination.
.
v=0.
o=- 10231 3023 IN IP4 10.99.47.102.
s=-.
c=IN IP4 10.3.0.44.
t=0 0.
m=audio 36144 RTP/AVP 0 8 2 4 18 101.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
 
 
U 2005/06/22 11:30:10.356381 66.90.46.29:9534 -> 10.2.20.21:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.5.22.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.365636 66.90.46.29:9534 -> 10.2.20.21:5060
SIP/2.0 486 Busy.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=6052578f448e8c60.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.5.22.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.366767 10.2.20.21:5060 -> 66.90.46.29:9534
ACK sip:3215550000@66.90.46.29:9534;user=phone SIP/2.0.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.0.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
Call-ID: 1206868322@10.99.47.102.
To: <sip:3215550000@sip.mycompany.com>;tag=6052578f448e8c60.
CSeq: 301 ACK.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.387854 10.2.20.21:5060 -> 66.90.46.29:5060
INVITE sip:3215591422@66.90.46.29:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.42:5060;lr>.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
Contact: <sip:4075559999@71.99.100.101:1105>.
max-forwards: 16.
Allow: INVITE, ACK, CANCEL, BYE, REFER, NOTIFY.
Content-Type: application/sdp.
Content-Length: 175.
P-hint: Local Destination.
P-hint: Forward Busy.
.
v=0.
o=- 10231 3023 IN IP4 10.99.47.102.
s=-.
c=IN IP4 10.3.0.44.
t=0 0.
m=audio 36144 RTP/AVP 0 8 2 4 18 101.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
 
 
U 2005/06/22 11:30:10.515511 66.90.46.29:5060 -> 10.2.20.21:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.6.3.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.524907 66.90.46.29:5060 -> 10.2.20.21:5060
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=79fe39bbac0500c1.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.6.3.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:10.525545 10.2.20.21:5060 -> 71.99.100.101:1105
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=79fe39bbac0500c1.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.6.3.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.217891 71.99.100.101:1105 -> 10.2.20.21:5060
CANCEL sip:3215550000@sip.mycompany.com SIP/2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 CANCEL.
max-forwards: 70.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.231433 10.2.20.21:5060 -> 66.90.46.29:5060
CANCEL sip:3215591422@66.90.46.29:5060;user=phone SIP/2.0.
Record-Route: <sip:10.3.0.42:5060;lr>.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 CANCEL.
max-forwards: 16.
Content-Length: 0.
P-hint: Local Destination.
.
 
 
U 2005/06/22 11:30:14.236203 10.2.20.21:5060 -> 71.99.100.101:1105
SIP/2.0 200 canceling.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK256996988;rport=1105;received=71.99.100.101.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=6310aaf6cb6aa68cca9add6fbfab6d5f-84ff.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 CANCEL.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.357391 66.90.46.29:5060 -> 10.2.20.21:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=ea9d53a35f368d2c.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 CANCEL.
User-Agent: Grandstream BT100 1.0.6.3.
Contact: <sip:3215591422@172.31.130.83;user=phone>.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Supported: replaces.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.363088 66.90.46.29:5060 -> 10.2.20.21:5060
SIP/2.0 487 Request Cancelled.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=131981a71ac26bed.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.6.3.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.363534 10.2.20.21:5060 -> 66.90.46.29:5060
ACK sip:3215591422@66.90.46.29:5060;user=phone SIP/2.0.
Via: SIP/2.0/UDP 10.3.0.42;branch=z9hG4bK1cca.129837b2.1.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
Call-ID: 1206868322@10.99.47.102.
To: <sip:3215550000@sip.mycompany.com>;tag=131981a71ac26bed.
CSeq: 301 ACK.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.363910 10.2.20.21:5060 -> 71.99.100.101:1105
SIP/2.0 486 Busy.
Via: SIP/2.0/UDP 10.99.47.102:5060;rport=1105;received=71.99.100.101;branch=z9hG4bK256996988.
Record-Route: <sip:10.3.0.42:5060;lr>.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=6052578f448e8c60.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 INVITE.
User-Agent: Grandstream BT100 1.0.5.22.
Content-Length: 0.
.
 
 
U 2005/06/22 11:30:14.598784 71.99.100.101:1105 -> 10.2.20.21:5060
ACK sip:3215550000@sip.mycompany.com SIP/2.0.
Via: SIP/2.0/UDP 10.99.47.102:5060;branch=z9hG4bK256996988.
From: 4075559999 <sip:4075559999@sip.mycompany.com>;tag=3734116179.
To: <sip:3215550000@sip.mycompany.com>;tag=6052578f448e8c60.
Call-ID: 1206868322@10.99.47.102.
CSeq: 301 ACK.
Content-Length: 0.


On 6/22/05, Jan Janak <jan@iptel.org> wrote:
On 22-06-2005 08:53, Java Rockx wrote:
> Hi All.
>
> I'm using t_check_status() to do call forwarding on 486 Busy responses. I
> have an odd thing happening where SER receives the 486 Busy message (for
> which SER properly sends an ACK response) and then the failure_route calls
> append_branch() and t_relay() to try another destination.
>
> After the new leg of the call is setup and then torn down, the original 486
> Busy seems to be hung in the tm module, because it magically appears in
> ngrep, which shows it being sent back to the caller as if the
> append_branch() never took place.
>
> Is there anything special that I should be doing to "swallow" the 486 Busy
> response to prevent it from being sent to the caller UA?

  What was the reply received on the new leg ? Did you setup
  failure_route again for the new leg ?

      Jan.