[OpenSIPS-Users] opensips B2BUA configuration in "top hiding"

[Bogdan-Andrei Iancu]

Hi Dheeraj,

All sequential requests related to SIP dialogs going through B2B are 
automatically handled by B2B module, invisible from script level.

If the BYE you get ends up in script, it may be because the BYE is bogus 
(as SIP) and does not match the B2B dialogs.

Best Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 09.06.2015 09:58, Dheeraj Bisht wrote:
>
> Hi,
>
> I am new to Opensips and also new on SIP as well. I am trying to 
> configure Opensips as B2BUA top hiding mode.
>
> I used the below configuration for that:
>
> route {
>
> …………….
>
>   if(is_method("INVITE")&& !(src_ip == "<my IP>” && src_port ==5060)) 
> /* skip Invite messages generated by the B2BUA*/
>
>   {
>
>     b2b_init_request("top hiding");
>
>     exit; # do not forward this request, another one will be generated
>
>   };
>
> …………….
>
> With such configuration, I am able to establish a call between my 
> client and server machine.
>
> During the call establishment, Opensips B2BUA translated the Call ID 
> with its own call ID [B2B.###.######]
>
> However, when I tried to terminate the call, Opensips B2BUA does not 
> translate the call ID and its causes the error at the server.
>
> Looking into the looks, it seemed to me that the Opensips B2BUA does 
> not go to search the dialog context while handling BYE message.
>
> The termination works fine for me when I changed the small code in 
> b2b_prescript_f so that the code go to search the dialog when BYE 
> message arrives.
>
>     if((method_value == METHOD_ACK) ||
>
>        (method_value == METHOD_BYE)) //BYE Method added here
>
>     {
>
>         goto search_dialog;
>
>     }
>
> Let me know if I am missing something here?
>
> Regards
>
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