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
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! > -MichaelG.726 sounds fine at 16kbps - if you want to sound like you have a sock stuffed in your mouth :-) Regards, Steve
g726 is 16,24,32 and 48k asterisk only does g726-32k. The iaxy doesn't do g726 it does ADPCM as g726 is too complex for the iaxy to do. So in this case g711ulaw/alaw is all you have to choose from. bkw ----- Original Message ----- From: "Michael George" <george@auroravideosys.com> To: <asterisk-users@lists.digium.com> Sent: Thursday, June 17, 2004 7:43 PM Subject: [Asterisk-Users] IAXy and bandwidth requirements> 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 > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >