[Asterisk-Users] IAXy and bandwidth requirements

[Steve Underwood]

Michael George wrote:

> In the mailing list archives, I found a message that indicates that 
> the IAXy has the ulaw, alaw, and g726 codecs, but I cannot find 
> anything official on Digium's site about it.  The Installation Manual 
> has an example iax.conf file that indicates the ulaw codec, so I know 
> that one is good.
>
> But we are thinking about using the IAXy over a VPN, to replace our 
> MultiVoip.  alaw and ulaw are 64kbps, which is too much for our 
> tunnel.  G726 would be good if is has decent sound quality at 16kbps.  
> We currently use MultiVoip's Netcoder at 9.6kbps which works fine.
>
> So, is there an official statement somewhere about which codecs the 
> IAXy supports?
>
> Thanks!
> -Michael

G.726 sounds fine at 16kbps - if you want to sound like you have a sock 
stuffed in your mouth :-)

Regards,
Steve