asterisk users - Apr 2005 - IAXy audio troubles (only on INCOMING calls)

Hello All!

I just got my IAXy.. Configured it.. Got it Up and Running 

Calls OUT have no problems (that means from IAXy -> Asterisk ->
ZAP/SIPclient/IAXclient) 

Calls IN do have problems (that means from ZAP/SIPclient/IAXclient ->
Asterisk -> IAXy) 

On those incoming calls on my IAXy I hear the other party on my IAXy,
But this other party can't hear me (the audio that's beeing sent from
the IAXy to asterisk can't be heard)

Does anyone have any idea what I can do about this?

Is this a common problem?

> On those incoming calls on my IAXy I hear the other party on my IAXy,
> But this other party can't hear me (the audio that's beeing sent
from
> the IAXy to asterisk can't be heard)
> 
> Does anyone have any idea what I can do about this?
Check your account settings in iax.conf for you IAXy. This is probably
a codec problem.

disallow=all
allow=ulaw

and set your IAXy to use ulaw

hth