[OpenSER-Users] Multidomain and in-dialog REFER auth issue

Klaus Darilion klaus.mailinglists at pernau.at
Tue Oct 16 14:09:26 CEST 2007


Iñaki Baz Castillo wrote:
> El Tuesday 16 October 2007 11:33:47 Klaus Darilion escribió:
>>>> Further, if B's phone send out the new INVITE, if $rd != $fd then do not
>>>> send the call to the gateway.
>>> Humm, it can't be, because in case of a forwarding (implemented in
>>> OpenSer) I do allow calls from others domain to PSTN gateway.
>> Usually, if a client wants to dial a phone number, the client will add
>> its own domain as RURI domain. E.g.
>>
>> sip:client at mydomain.com calls PSTN 12345: RURI=sip:12345 at mydomain.com ->
>> forward to PSTN gateway
>>
>> sip:client at mydomain.com calls sip:12345 at otherdomain.com --> forward
>> request to otherdomain. Regardless if otherdomain.com is hosted in the
>> same openser or any others SIP proxy, at otherdomain.com this is an
>> incoming SIP call from an external SIP client which MUST NOT be routed
>> to the PSTN.
>>
>> Thus, I would add both checks.
> 
> But imagine this case:
> 
> - domain_A and domain_B are hosted in my OpenSer (but totally independents).
> 
> - sip:user_A at domain_A calls sip:user_B at domain_B
> 
> - In OpenSer there is forwarding:  sip:user_B at domain_B -> sip:012345 at domain_B
> 
> - In domain_B permissions table I allow forwardings to PSTN for calls made 
> from others domain (as domain_A), but not direct INVITE's (of course).

In this case - if it is an explicit forwarding, and it will be proper 
accounted, then of course it is ok.

regards
klaus

> 
> - Finally sip:user_A at domain_A calls sip:012345 at domain_B but I know in OpenSer 
> it's a allowed forwarding so add any header (Diversion?) the gateway to know 
> it and facture to sip:user_B at domain_B isntead of sip:user_A at domain_A.
> 
> - In fact, in the gateway I will facture based on RURI instead of "From".
> 
> 
> Is not correct?
> 
> 





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