asterisk users - Oct 2004 - No audio on incoming IAX calls

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)
http://www.sineapps.com/rssfeed.php (Daily Asterisk News - rss)

matt.riddell@sineapps.com wrote:
> 
> One other possible hint: I can't ping anybody except for my gateway.
> 
If this is so, then it looks like your networking setup should be the 
starting point of your troubleshooting efforts.

I'd suggest you first get the networking configuration of your box 
properly set up, stuff like making sure the ethernet cables are properly 
connected, your network card works properly etc the basic stuff. then, 
without * started, see if you can ping the rest of the IAX/SIP 
clients/phones on the network.

after that bit's settled then you should progress to troubleshooting the 
* -> IAX client connection.

it's not a good idea to much about with the * config files when you 
can't even ping anyone else!

Cheers
Flynn

On 14 Oct 2004 at 9:42, el Flynn wrote:
> matt.riddell@sineapps.com wrote:
> > 
> > One other possible hint: I can't ping anybody except for my
gateway.
> > 
> 
> If this is so, then it looks like your networking setup should be the
> starting point of your troubleshooting efforts.
> 
> I'd suggest you first get the networking configuration of your box
> properly set up, stuff like making sure the ethernet cables are
> properly connected, your network card works properly etc the basic
> stuff. then, without * started, see if you can ping the rest of the
> IAX/SIP clients/phones on the network.
This setup had been running fine for over a year...and yes the 
general networking works.  I was previously running the web server on 
the same box and it was fine...except once the traffic started 
getting high (hence the move to offsite hosting with LiveVOIP LLC).

Sorry I meant that I can't ping out past the gateway.  There is no 
problem ping internal addresses (i.e. the ones that IAX clients are 
calling from).
> after that bit's settled then you should progress to troubleshooting
> the * -> IAX client connection.
> 
> it's not a good idea to much about with the * config files when you
> can't even ping anyone else!
I have a reasonable knowledge of the config files and have many 
Asterisk boxes set up at remote locations around New Zealand.  The 
reason I can't ping is because I set my firewall to disallow incoming 
ICMP.

Cheers,

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