[OpenSIPS-Users] Removing a VIA line required by Telco.

[Iñaki Baz Castillo]

El Lunes, 20 de Abril de 2009, David Gilbert escribió:
> I've read a considerable number of posts.  It doesn't seem like anyone
> has had to do this.
>
> My Telco (no choice in this matter) doesn't "support" using proxies.  My
> call must come from a specific IP (running the proxy) but it must not
> contain VIA lines with anything other than the IP.  Currently, I have:
>
> Asterisk (client) --IAX--> Asterisk (mine) --SIP--> OpenSIPS --SIP--> Telco
>
> The Telco only wants to see the OpenSIPS IP in a single VIA header.
> Asterisk puts in a VIA header, OpenSIPS adds one, call fails.
>
> I've tried send('Telco'), but this fails as the VIA header has the
> Asterisk(mine) IP.  I've tried remove_hf('Via'), but this seems to just
> make a mess of things --- one big extended VIA header (and it fails).
>
> So... I believe I need to remove the VIA header, but I can't find a way
> that works...

Are you *completely* sure that your telco requires just one Via? I've already 
listened to that stupid argument from a carrier, and this is a typical reply 
when the carrier has no idea of what it's talking about.

A proxy cannot remove a second Via (if so, how to route responses from the 
carrier back to the users???).

Your telco is a pain and IMHO the best you can do is changing of provider.



-- 
Iñaki Baz Castillo <ibc at aliax.net>