[asterisk-dev] IAX2 'extensions'

[Thomas Andrews]

On Wed, Aug 23, 2006 at 01:25:16PM -0500, Kenny Shumard wrote:

> On 8/23/06, Thomas Andrews <tandrews at grok.co.za> wrote:
> >What is the correct/appropriate way (if possible) to use IAX2 to send
> >info between two asterisk servers that is not call-related?
> >
> >Let's say I change the configuration (eg using realtime) of a server,
> >and I want to be able to propagate the change to another server. Is
> >there any provision in IAX2 to be able to send some kind of message
> >across?
> 
> The IAX protocol describes a text frame that can be used to carry
> arbitrary text that is not related to call control. You can use an AGI
> script and the send_text and receive_text commands to move text frames
> back and forth. Of course, these basic tools don't create the call the
> text frames will pass on. Nor do they process the data when it gets to
> the other side. But the pieces are there to move data via IAX between
> two asterisk servers, without using the recent patch posted on Mantis.
> 
> It's worth pointing out that at that point you're not really getting
> much value out of the data transmission carrier being IAX; you might
> as well use rsync or scp or some other tool.

There is one advantage for me - you only need to consider the one IAX2
port when it comes to firewalls, so firewalling remains 'standard'.

Thanks for your comments.