[OpenSIPS-Users] (no subject)

[Jorge Henrique Pinho]

Hi Bogdan!
It is supposed to send the Bye, but b2b is generating two BYEs (it is not retransmission) to end the same leg.
You can see in the attachment the pcap capture that show this behavior.
Do you know why b2b is generating the extra messages?
Kind regards!
Jorge Pinho

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: sexta-feira, 14 de Junho de 2013 11:31
To: Jorge Henrique Pinho
Cc: OpenSIPS users mailling list
Subject: Re: [OpenSIPS-Users] (no subject)

Ok, going back to b2b then.

Why it is not supposed to send  BYE to B ? if you do terminate_call, all legs will be terminated.

Regards,


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com

On 06/14/2013 11:46 AM, Jorge Henrique Pinho wrote:
Hi bogdan!
Yes, I prefer to use b2b, if you can look into the problem I'll be very grateful.

Kind regards!

Jorge Pinho

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: quinta-feira, 13 de Junho de 2013 17:43
To: Jorge Henrique Pinho
Cc: OpenSIPS users mailling list
Subject: Re: [OpenSIPS-Users] (no subject)

Hello Jorge,

For exactly those purposes you can use dialog module (topo hiding and call termination), but in a lighter and simpler fashion.

If you are keen to use the b2b, I can look into the problem.

Regard,



Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com

On 06/13/2013 04:56 PM, Jorge Henrique Pinho wrote:
Hi Bogdan!
It choose b2b support with topo hiding because this way the module will automatically match and forward requests and replies.
In this example when I receive a bad formatted 200OK I need to immediately end the call. The call is ended in both clients but b2b is sending two BYE messages to B instead of one.
What could be causing this behavior?

Kind regards,

Jorge Pinho


From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: quarta-feira, 12 de Junho de 2013 18:26
To: OpenSIPS users mailling list
Cc: Jorge Henrique Pinho
Subject: Re: [OpenSIPS-Users] (no subject)

Hi Jorge,

First of all, why do you want to use b2b support if you only need topo hiding and to terminate a call ? For these you can simply use the dialog module, which is a much lighter approach (with less probability for complications).

Have you consider to use the dialog module, with topology_hiding() script function and dlg_end_dlg MI function ?

Regards,




Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com

On 06/12/2013 07:35 PM, Jorge Henrique Pinho wrote:
Hi, I am using opensips with b2b module with topology hiding.
I am trying to terminate a call when i receive the 200OK response to a Re-Invite. To accomplish this i am using the 'terminate_call' function defined in b2b_logic module.
The dialog is establish and an user sends an in dialog Invite to renegotiate codecs, but the 200OK reply is mal formed. In consequence I need to terminate the call at this stage.
To accomplish this I am using the terminate_call function present in b2b_logic module. When I receive the 200OK bad formatted message, I invoke the terminate_call function. The behavior of b2b is this :
A ----------------- Opensips (B2B) ------------------------ B
A   Re-Invite -->          |             Re-Invite -->      B
A                                     |             200 OK*  <--        B *Bad formatted 200OK
A    BYE <--                   |                                             B
A                                     |          BYE -->                 B
A                                     |          ACK    -->                 B
A                                     |          BYE     -->                 B
It seems that b2b is sending a first BYE to B that was not supposed to. Log is in the attachment.
Can you help me fix this?
Kind regards
Jorge Pinho





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