As a side note, I strongly would like to see someone implement a client using libiax2 which implements IAX2 instead of the (now obsolescent) IAX version 1.
I'm implementing a Java-based IVR server (and yes, I know Asterisk does IVR, and no, it's not flexible enough to do what I want and no, it doesn't integrate well with the Java systems we have, etc. hence my doing this).
Currently it uses SIP (using the NIST JAIN-SIP stack) and JMF to handle RTP/audio stuff. I've found that JMF/RTP doesn't scale very well, as it spawns a *lot* of threads, and can't reliably handle more than 20 simultaneous calls.
So, I'm investigating the possibility of writing an IAX library for Java. Searching the archives, it seems various other people would be interested in this. So, my questions are:
- Should I implement IAX or IAX2? What's the main difference, other than IAX2 supporting trunking (which according to the docs needs a Zaptel timing source).
- Has anyone else made any headway with this?
- Is anyone else interested in making this an LGPL or even a GPL project and helping me with it? I'm likely to implement just the call management/DTMF/audio type stuff required for IVR initially (i.e. not worry about call xfer, etc.). It'll also be geared towards handling the hundreds of simultaneous calls required in a server environment, although there'll be no reason not to use it for IAX clients too.
Obviously such a library would enable a nice GUI cross-platform IAX(2?) client to be easily created, which would be a nice by-product.
-- Alastair Maw MX Telecom http://www.mxtelecom.com
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