Scenario 1:

U 212.34.169.220:5060 -> 78.45.146.34:5060

BYE sip:test@78.45.146.34 SIP/2.0.

Route: <sip:78.45.146.34;ftag=aa313a3c;lr>.

CSeq: 2 BYE.

Via: SIP/2.0/UDP 212.34.169.220:5060.

From: <sip:1217773456@78.45.146.34>;tag=03095807065938997270316869.

Call-ID: 8246bf729f62a754.

To: 58.68.96.11<sip:test@78.45.146.34>;tag=aa313a3c.

Content-Length: 0.

#

U 78.45.146.34:5060 -> 212.34.169.220:5060

SIP/2.0 404 User Not Found.

CSeq: 2 BYE.

Via: SIP/2.0/UDP 212.34.169.220:5060.

From: <sip:1217773456@78.45.146.34>;tag=03095807065938997270316869.

Call-ID: 8246bf729f62a754.

To: 58.68.96.11<sip:test@78.45.146.34>;tag=aa313a3c.

Server: OpenSer (1.0.1 (i386/linux)).

Content-Length: 0.

Warning: 392 78.45.146.34:5060 "Noisy feedback tells:  pid=24525 req_src_ip=78.45.146.34 req_src_port=5060 in_uri=sip:78.45.146.34;ftag=aa313a3c;lr out_uri=sip:78.45.146.34;ftag=aa313a3c;lr via_cnt==2".

Scenario 2:

U 59.176.78.110:50496 -> 210.68.65.78:5060

BYE sip:210.68.65.78 SIP/2.0.

Route: <sip:@209.67.171.10;transport=udp>.

Via: SIP/2.0/UDP 59.176.78.110:50496.

From: sip:user1@210.68.65.78;tag=4154163258.

To:  <sip:12818495027@210.68.65.78;user=phone>;tag=3005360702044301069847989.

Call-ID: 4202237689@192.168.1.156.

CSeq: 3 BYE.

User-Agent: Cisco ATA  v2.15 ata18x (020927a).

Content-Length: 0.

.

#

U 210.68.65.78:5060 -> 59.176.78.110:50496

SIP/2.0 478 Unresolvable destination (478/TM).

Via: SIP/2.0/UDP 59.176.78.110:50496.

From: sip:user1@210.68.65.78;tag=4154163258.

To:  <sip:12818495027@210.68.65.78;user=phone>;tag=3005360702044301069847989.

Call-ID: 4202237689@192.168.1.156.

CSeq: 3 BYE.

Server: OpenSer (1.0.1 (i386/linux)).

Content-Length: 0.

Warning: 392 210.68.65.78:5060 "Noisy feedback tells:  pid=2144 req_src_ip=59.176.78.110 req_src_port=50496 in_uri=sip:210.68.65.78.

In both cases BYE is not getting accounted for. Can anyone help me on this ??

Regards

Dan