Asterisk 1.2.4 Various hardware on the PBXs - P4 3ghz, Celerons, etc Polycom phones running 1.6.5 or other ATA hardware Talking to Cisco 3660 for PRI access as well as a Cisco 3660 for long distance Ulaw or g729 AMP or FreePBX as the GUI to control Randomly, and this is very hard to debug because it happens so quickly on outbound calls I get a one way screech, it's a steady tone that's very loud. The remote end cannot hear it. You can hear the person talking through the tone. I can't describe it but it's bad enough you have to hang up and call back, and everything then is of course fine since it's so random I have not been able to reproduce it on demand. I was going to upgrade to 1.2.10 tonight to test but was curious to see if anyone else had similar situations they have experienced. Bill -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060725/3e0a7a9a/attachment.htm
Bill Gibbs wrote:> Randomly, and this is very hard to debug because it happens so quickly > on outbound calls I get a one way screech, it's a steady tone that's > very loud. The remote end cannot hear it. You can hear the person > talking through the tone. I can't describe it but it's bad enough you > have to hang up and call back, and everything then is of course fine > since it's so random I have not been able to reproduce it on demand.jbot: Echo Canceler Freak Out, this happens when the rxgain is too high and the echo canceler freaks out. Some users describe it as "screeching", "feedback", "static", or other useless terms. If users report "static" on a system where there cannot be static (all digital, PRI, SIP, etc), you might be experiencing ECFO. -- Now accepting new clients in Birmingham, Atlanta, Huntsville, Chattanooga, and Montgomery.
So would this be the remote end echo can freaking out or the Polycom on the caller side? Bill -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Eric "ManxPower" Wieling Sent: Wednesday, July 26, 2006 9:02 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] One way "screech" or tone Bill Gibbs wrote:> Randomly, and this is very hard to debug because it happens so quickly > on outbound calls I get a one way screech, it's a steady tone that's > very loud. The remote end cannot hear it. You can hear the person > talking through the tone. I can't describe it but it's bad enough you > have to hang up and call back, and everything then is of course fine > since it's so random I have not been able to reproduce it on demand.jbot: Echo Canceler Freak Out, this happens when the rxgain is too high and the echo canceler freaks out. Some users describe it as "screeching", "feedback", "static", or other useless terms. If users report "static" on a system where there cannot be static (all digital, PRI, SIP, etc), you might be experiencing ECFO. -- Now accepting new clients in Birmingham, Atlanta, Huntsville, Chattanooga, and Montgomery. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Ok, in my case it would be my Cisco 3660 since that's what talks to the PRI. It talks sip to my Asterisk box. Thanks! Bill -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Eric "ManxPower" Wieling Sent: Wednesday, July 26, 2006 9:34 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] One way "screech" or tone IP Phone <-> Asterisk <-> PSTN. This would be the Echo Canceler on the Asterisk/Zap <-> PSTN interface. Bill Gibbs wrote:> So would this be the remote end echo can freaking out or the Polycomon> the caller side? > > Bill > > -----Original Message----- > From: asterisk-users-bounces@lists.digium.com > [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Eric > "ManxPower" Wieling > Sent: Wednesday, July 26, 2006 9:02 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] One way "screech" or tone > > Bill Gibbs wrote: > >> Randomly, and this is very hard to debug because it happens soquickly>> on outbound calls I get a one way screech, it's a steady tone that's >> very loud. The remote end cannot hear it. You can hear the person >> talking through the tone. I can't describe it but it's bad enoughyou>> have to hang up and call back, and everything then is of course fine >> since it's so random I have not been able to reproduce it on demand. > > jbot: Echo Canceler Freak Out, this happens when the rxgain is toohigh> and the echo canceler freaks out. Some users describe it as > "screeching", "feedback", "static", or other useless terms. If users > report "static" on a system where there cannot be static (all digital,> PRI, SIP, etc), you might be experiencing ECFO. >-- Now accepting new clients in Birmingham, Atlanta, Huntsville, Chattanooga, and Montgomery. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users