[OpenSIPS-Users] B2B: how to-header is formed?

Nick Altmann nick.altmann at gmail.com
Thu Apr 19 07:50:02 CEST 2012


I mean from header, of course, not from tag. :-)

--
Nick


2012/4/19 Nick Altmann <nick.altmann at gmail.com>:
> B2B as frontend to multi-domain proxy.
>
> It changes from tag and breaks proxy session.
>
> I worked around this problem this way:
>
> route {
>   append_hf("Orig-To: $hdr(To)\r\n");
>   b2b_init_request("top hiding");
> }
>
> local_route {
>   if (b2b_call) {
>      remove_hf("To");
>      append_hf("To: $hdr(Orig-To)\r\n", "From");
>      remove_hf("Orig-To");
>   }
> }
>
> But I think it's not good method and b2b should have flag or variable
> or another method to enable/disable from mangling.
>
> --
> Nick
>
>
> 2012/4/18  <duane.larson at gmail.com>:
>> I am not apart of the core team but could you explain the topology more and
>> what parts you have control over?
>>
>> On , Nick Altmann <nick.altmann at gmail.com> wrote:
>>> Core team, where are you?
>>>
>>>
>>>
>>> --
>>>
>>> Nick
>>>
>>>
>>>
>>>
>>>
>>> 2012/4/13 Nick Altmann nick.altmann at gmail.com>:
>>>
>>> > The problem that sometimes this behavior of b2b breaks call.
>>>
>>> >
>>>
>>> > Before b2b - From: client at domain.com
>>>
>>> > After b2b - From: client at 8.8.8.8
>>>
>>> >
>>>
>>> > But if destination is multidomain sip server that behavior breaks call.
>>>
>>> > Destination server doesn't understand where to route the call.
>>>
>>> >
>>>
>>> > --
>>>
>>> > Nick
>>>
>>> >
>>>
>>> >
>>>
>>> > 2012/4/13 Nick Altmann nick.altmann at gmail.com>:
>>>
>>> >> How b2b_logic forms to-header in "top hiding" scenario?
>>>
>>> >>
>>>
>>> >> Is it possible to make flag or another method for b2b_init_request to
>>>
>>> >> not change to-header by b2b, just pass it through b2b?
>>>
>>> >>
>>>
>>> >> --
>>>
>>> >> Nick
>>>
>>>
>>>
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>>>
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>>>
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