[Asterisk-Users] No audio on incoming IAX calls

[matt.riddell at sineapps.com]

This seems to be an incredibly strange one.

I have a couple of problems (well more than that but a couple that 
relate to Asterisk).

First is that when somebody calls me via IAX neither end can hear any 
audio.  If however I dial from here, there is no problem.

This is strange because a) there don't appear to be any errors, b) 
the call flows right through the dialplan through to dialing my phone 
(connected to an FXS module on TDM400P), the phone rings but when I 
answer, there is just silence.

Ok and now for the strange one.

I can't get any IAX clients to work with my server.  My iax.conf is 
right (I have stripped it right back) and I have tried it in multiple 
configurations.

Now for the hint: it would appear that when I try to register a 
client (DIAX for example - although I have tried all) with 
192.168.0.xx (the internal network on interface eth0), there is no 
response whatsoever.  Even with IAX debug on.  If however I register 
with nz.sineapps.com (which terminates to my machine on interface 
hsb0) then the registration appears to work.

Ah a note of clarification on the above point, I have tried both 
binding to 0.0.0.0/0.0.0.0 as well as no bind address.

One other possible hint: I can't ping anybody except for my gateway.

I've searched all over the net (google at least) as well as the wiki 
and #asterisk without success.  I am thinking that my solution may be 
to format the drive and reinstall (I have removed rather a few 
packages related to X because I initially was running KDE on the 
box).

Also...there should be no problem with my hostname returning 
linux.sineapps.com should there?

Thanks for reading this far, I hope someone can help!

Cheers,

Matt Riddell
http://www.sineapps.com/news.php (Daily Asterisk News - html)
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