[OpenSER-Users] RPID or PAI just for calls to PSTN?

[Klaus Darilion]

Iñaki Baz Castillo schrieb:
> Hi, I'll add RPID or PAI header in calls to PSTN gateway, but the fact is that 
> I add those headers after user Authentication, even if it's a local call to 
> other domain user and so.
> 
> Could be problematic in any way to insert those headers when they are not 
> needed? Of course, if 200 at domain INVITE's 201 at domain and during auth OpenSer 
> add "RPID=+0034123123123..." I want 201 sees 200 as callerid.
> 
> Maybe some UAS use received RPID or PAI as callerid? maybe I should add those 
> headers just if the call goes to PSTN gateway?

Yes, there are some clients out there which use PAI/RPID if present.

Further. make sure you remove_hf(PAI and/or RPID) the existing headers 
as clients could spoof them.

klaus


> 
> Thanks.
> 
>