Look at the route header generated by the cisco:
It's broken
#
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.
.


Dan wrote:

Hi,

 

I am facing a peculiar issue with accounting. BYE packets are getting rejected with error message: 478 Unresolvable destination.

 

This happens only in case I use ATA for calling and with some gateways only. With the same gateway if I call using xlite, accounting works fine. I am unable to find out the reason.

 

Can someone help on this?

 

I am attaching the log when I am calling from a ATA and BYE is being rejected by openser.

 

 

Regards

Dan


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