[OpenSIPS-Users] No ACK response for 200 ok

[Bogdan-Andrei Iancu]

Hi Nawfel,

The problem is in one of the end points as for a 200 OK calls, the 200 
reply and the ACK is end-2-end.

If you have a trace, maybe I can help you to see if there is a 
signalling problem.

Regards,
Bogdan

Nawfel Oujdi wrote:
> Hello!!
>  I m new in opensips and i m testing the load balancer cause i need 
> it  to balance calls between  4 asterisk.For the start i make the 
> following scenario 
>
>       Cisco gateway inbound ------> opensips ------> asterisk  
> ---------> Cisco gateway outbound
>  
> when the call comes to the opensips, the load_balancer forward the 
> call correctly to my asterisk but the call hangs up after 15 seg 
> approximately.When i did a ngrep for the sip traffic in opensips,  i 
> realized that cisco gateway inbound never sent the ACK for 200 OK to 
> opensips .
> In the Cisco's logs i saw that the reply of 200 ok is sent directly to 
> public ip of asterisk but never to opensips server so asterisk still 
> waiting for the ACK from opensips.
> In the same way opensips never receive the BYE packet and the load 
> never decrease  when the call is hanging up.
>
>  
>         Cisco gateway          opensips        asterisk
>                   ---invite--->      
>                   <--trying----      ---invite--->      
>                                      <---trying---
>                                      <----200OK---
>                   <---200 OK---                  
>                                       <----200OK---
>                   <---200 OK---                  
>                                       <----200OK---
>                   <---200 OK---                  
>                                       <----200OK---
>                   <---200 OK---                  
>                  
> Please can somebady help me to understand  what cause that?
>
> Best Regards!!         
>                  


-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
15 - 19 November 2010, Edison, New Jersey, USA
www.voice-system.ro