asterisk users - Oct 2004 - G.711alaw to iLBC

Hi All,
I was doing some testing between on extension running SIP at G.711alaw and
an IAX extension runing iLBC (also GSM) and found that the voice from the
IAX user has a lot of packet loss (very bad voice quality) toward the SIP
phone only. From SIP phone to IAX, voice quality is fine. SIP phone is local
to * and IAX phone is remote to asterisk. Anyone have any ideas? Could this
be a jitter problem, I am not using a jitter buffer in the iax.conf. If I
test with two IAX phones both running iLBC the voice quality is fine in both
directions.

Regards
Garry Taylor

On Sun, 31 Oct 2004, Garry Taylor wrote:
> Hi All,
> I was doing some testing between on extension running SIP at G.711alaw and
> an IAX extension runing iLBC (also GSM) and found that the voice from the
> IAX user has a lot of packet loss (very bad voice quality) toward the SIP
> phone only. From SIP phone to IAX, voice quality is fine. SIP phone is
local
> to * and IAX phone is remote to asterisk. Anyone have any ideas? Could this
> be a jitter problem, I am not using a jitter buffer in the iax.conf. If I
> test with two IAX phones both running iLBC the voice quality is fine in
both
> directions.
Are you trying to use IAX trunking?  If so, try turning it off.

Steve

IAX extension, ie. firefly.
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com 
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of 
> steve@daviesfam.org
> Sent: Sunday, 31 October 2004 5:46 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] G.711alaw to iLBC
> 
> 
> 
> 
> On Sun, 31 Oct 2004, Garry Taylor wrote:
> 
> > Hi All,
> > I was doing some testing between on extension running SIP 
> at G.711alaw 
> > and an IAX extension runing iLBC (also GSM) and found that 
> the voice 
> > from the IAX user has a lot of packet loss (very bad voice quality) 
> > toward the SIP phone only. From SIP phone to IAX, voice quality is 
> > fine. SIP phone is local to * and IAX phone is remote to asterisk. 
> > Anyone have any ideas? Could this be a jitter problem, I am 
> not using 
> > a jitter buffer in the iax.conf. If I test with two IAX phones both 
> > running iLBC the voice quality is fine in both directions.
> 
> Are you trying to use IAX trunking?  If so, try turning it off.
> 
> Steve
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