[Asterisk-Users] SIP to IAX

[Yu Safin]

On 10/19/05, Steve Totaro <asterisk at totarotechnologies.com> wrote:
> YES
>
> ----- Original Message -----
> From: "Frank Kostin" <frankostin at yahoo.com>
> To: <asterisk-users at lists.digium.com>
> Sent: Wednesday, October 19, 2005 8:58 AM
> Subject: [Asterisk-Users] SIP to IAX
>
>
> Hello everybody,
> Is it possible to route "any" incoming SIP call
> (without authentication - register) from an Asterisk A
> to a remote Asterisk B(throught IAX2), transparently ?
> Otherwise said, I would like to pass any incoming SIP
> call from Asterisk A to Asterisk B without SIP need to
> be registered, like a phone call in zap.
> I would apreciate any hint,
> Thanks,
> Frank
>
short answer yes,
read on,
what you really need to know is the compression.  You want to avoid
having to compress/uncompress different formats more than once.  I
normally have my SIP phones on 711 (same LAN to Asterisk A), then the
calls travel via IAX2 to Asterisk B (yes, it is transparent).  From
Asterisk B, they might go to Zap phones, SIP phones, IAX phones, FXO
(Zap), channel banks, etc.