[asterisk-users] SIP v IAX2

[Douglas Garstang]

> -----Original Message-----
> From: Dave Cotton [mailto:dcotton at linuxautrement.com]
> Sent: Thursday, October 26, 2006 10:21 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] SIP v IAX2
> 
> 
> On Thu, 2006-10-26 at 17:43 +0200, Pavel Jezek wrote:
> > with SIP qualify, I can specify, what time in delay I will accept,
> > with sip and setting qualify=3000 I can circumvent this 
> anoying messages 
> > (bacause delay in reply is about 2000ms, and I accept 3000ms)
> > with iax, qualify is working different, so setting 
> qualify=3000 will 
> > "ping" peer every 3s,
> > quite inconsistent, imho
> 
> So are you saying that in your world two different things, created by
> totally different people, must have the same configuration settings.

- You will find DUNDi configuration a lot easier with IAX, although you can use SIP.
- If you use SIP to route calls between Asterisk boxes, you will lose your caller id as SIP uses the From: number to authenitcate with. You will have to store the original caller id in an extra SIP header, and then pluck it out an the other end, if you want to preserve caller id. Yuck. IAX doesn't have this problem.

Doug.