My understanding of

Differences to sip and iax is that underlying command/control/comment data.

If you have and send that data, asterisk is ready for it.

Any sip device can be a iax device, but to have iax control, you must send that extra iax data formatted.
Any iax device can be used as a sip device without control.

any clues where the original java source may be found ?

...mike/kb8jnm
-------- Original Message --------
Subject: Re: [App_rpt-users] Web transceiver node display
From: Tim Sawyer <tim.sawyer@mac.com>
Date: Sun, August 17, 2014 1:35 pm
To: mike@midnighteng.com
Cc: app_rpt-users@ohnosec.org

Why is (a nicely commented) iax.conf shown there? 
--
Tim
:wq

On Aug 17, 2014, at 10:14 AM, mike@midnighteng.com wrote:

It's already sourced as iax.