Hi Glenn,

even if the client does not place a rport to it's via, you can force it from script via force_rport() core function:

http://openser.org/dokuwiki/doku.php?id=openser_core_cookbook#force_rport than openser will place the rport and will correctly route back the reply through the NAT.

regards, bogdan

Glenn Dalgliesh wrote:

I am seeing a similar problem when NAT is involved with a client that doesn't place rport in it's Via header. Are you using NAT in your scenario? I have found that in my case the OK response to the BYE gets forwarded to the originating source port instead of the received port which gets rejected by the NAT router and then the BYE gets regenerated but since the GW already received the first BYE and responded with an OK you will then get a 'Call Leg/Transaction Does Not Exist' since the call has already been disconnected.

Please let me know if you think this could be related to your issue. I may have a fixed but I am not sure how proper it is.

Thanks

-----Original Message----- From: users-bounces@openser.org [mailto:users-bounces@openser.org] On Behalf Of Daniel-Constantin Mierla Sent: Friday, October 14, 2005 2:24 AM To: Sam Lee Cc: users@openser.org Subject: Re: [Users] BYE method accompanied by error

It seems that the gateway does not like the BYE, maybe there are some bad header values there. Anyhow, you can account failed transactions too (see failed_transaction_flag parameter of acc module), or just use acc_db_request() function for BYEs.

Cheers, Daniel

On 10/13/05 05:30, Sam Lee wrote:

...

Any help I can get on this one ?

Sam

-----Original Message----- From: users-bounces@openser.org [mailto:users-bounces@openser.org] On Behalf Of Sam Lee Sent: Wednesday, October 12, 2005 3:27 PM To: Iqbal; users@openser.org Subject: RE: [Users] BYE method accompanied by error

I have checked that the phones have not received a prior BYE. Any other idea what is wrong ?

Here's a more detailed situation :-

Caller (PSTN) --> Voice Gateway --> OPENSER --> Callee (UA)

When Callee (UA) tried to end the call , OPENSER will forward a copy of the BYE to Voice Gateway to inform him of the BYE. The Gateway , somehow , replied with a 'Call Leg/Transaction Does Not Exist' . The strange thing is, the Caller (PSTN) was somehow informed of the BYE method and terminate the session . Anyone has any idea how to handle these errors ? I will be glad to provide a ngrep for more reference.

Regards, Sam

-----Original Message----- From: users-bounces@openser.org [mailto:users-bounces@openser.org] On Behalf Of Iqbal Sent: Tuesday, October 11, 2005 7:35 PM To: Sam Lee Cc: users@openser.org Subject: Re: [Users] BYE method accompanied by error

Can you check to see if you have already received a BYE for that call, some phones I had were sending there own Bye's after the GW had

Iqbal

Sam Lee wrote:

...

Hi all,

I would like to know why does my BYE method are always replied with a 'Call Leg/Transaction does not exist' . How do they compare whether the transaction in the BYE method exist or not ? ( tag? ftag ? ) Are there any thing in the config that might cause this kind of problem ? Just want to highlight that all the calls are made in a good condition, everything except when the call is ending.

Please let me know if you dont understand.

Regards, Sam

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