Hey everybody, I have a situation where we have 2 Asterisk (CVS as of 08/25/2005) connected via IAX. On the corporate side, we have 1 TE110P connecting to a Definity G3R and it's connecting to a TN464F card, giving a 23 channel connection. I have echocancel=yes, echotraining=yes and echocancelwhenbridged=yes. One the remote office side, they a Adit 600 channel bank for 10 outside lines and is using a Point to Point T1 for communications between divisions. When there is a call on zap 1, from a sip phone on the remote office side and typing 'zap show channel 1' shows echo cancel is on, doing the same thing from the Definity to a SIP phone shows echo cancel off. Shouldn't it be on during a call on both the incoming and outgoing legs as long as it comes accross the PRI? Some (Myself included) have noted a slight echo on the Definity to SIP leg of the connection. My zapata.conf is below: switchtype = national context = incoming signalling = pri_cpe echocancel=yes echotraining = yes echocancelwhenbridged=yes overlapdial = yes group = 1 channel => 1-23 All suggestions would be welcome. Thanks! Doug
On Wed, Aug 31, 2005 at 09:46:37PM -0400, Doug Lytle wrote:> When there is a call on zap 1, from a sip phone on the remote office > side and typing 'zap show channel 1' shows echo cancel is on, doing the > same thing from the Definity to a SIP phone shows echo cancel off. > Shouldn't it be on during a call on both the incoming and outgoing legs > as long as it comes accross the PRI? Some (Myself included) have noted > a slight echo on the Definity to SIP leg of the connection. > > My zapata.conf is below: > > switchtype = national > context = incoming > signalling = pri_cpe > echocancel=yes > echotraining = yes > echocancelwhenbridged=yes > overlapdial = yes > group = 1 > channel => 1-23I have not seen it myself, but I have heard that some people have ahd trouble with overlapdial and echo cancellation. I have not been able to confirm whether or not this is actually a bug. One possible fix is to disable overlapdial and see if echo cancellation is enabled after this. If it is, this might be a bug in chan_zap.c -- Matthew Fredrickson
Matt Fredrickson wrote:>On Wed, Aug 31, 2005 at 09:46:37PM -0400, Doug Lytle wrote: > > >>When there is a call on zap 1, from a sip phone on the remote office >> >> >I have not seen it myself, but I have heard that some people have ahd trouble with >overlapdial and echo cancellation. I have not been able to confirm whether or not >this is actually a bug. One possible fix is to disable overlapdial and see if echo >cancellation is enabled after this. If it is, this might be a bug in chan_zap.c > > >Turning off overlapdial did indeed fix it. It now shows as being enabled. Doug
On Thu, Sep 01, 2005 at 12:40:16PM -0400, Doug Lytle wrote:> >>When there is a call on zap 1, from a sip phone on the remote office > >> > >> > >I have not seen it myself, but I have heard that some people have ahd > >trouble with > >overlapdial and echo cancellation. I have not been able to confirm > >whether or not > >this is actually a bug. One possible fix is to disable overlapdial and > >see if echo > >cancellation is enabled after this. If it is, this might be a bug in > >chan_zap.c > > > Turning off overlapdial did indeed fix it. It now shows as being enabled.Try updating to latest HEAD. I just fixed it this morning. It should work with overlapdial enabled now. -- Matthew Fredrickson
Matt Fredrickson wrote:>On Thu, Sep 01, 2005 at 12:40:16PM -0400, Doug Lytle wrote: > > >>>>When there is a call on zap 1, from a sip phone on the remote office >>>> >>>> >>>> >>>> >>>I have not seen it myself, but I have heard that some people have ahd >>> >>> >>Turning off overlapdial did indeed fix it. It now shows as being enabled. >> >> > >Try updating to latest HEAD. I just fixed it this morning. It should work >with overlapdial enabled now. > > >Matt, This is working fine now! Thanks! Doug