Occassionally on calls we get what sounds like low volume channel bleedover. Not clear enough to make out words, but not echo of either side of the main coversation. We're using a Digium card with 11 channels connected to PSTN lines. Any ideas on what the problem is or how to go about troubleshooting? Thanks! Paul
I've had pretty good luck getting the telco to bring out a laptop and test the lines for this sort of thing. Not past the DMARC, of course, but still it helps to narrow problems down. Bob McDowell -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Paul A. Pringle Sent: Wednesday, February 15, 2006 11:50 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Channel bleedover? Occassionally on calls we get what sounds like low volume channel bleedover. Not clear enough to make out words, but not echo of either side of the main coversation. We're using a Digium card with 11 channels connected to PSTN lines. Any ideas on what the problem is or how to go about troubleshooting? Thanks! Paul _______________________________________________ --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
On Wednesday 15 February 2006 12:49, Paul A. Pringle wrote:> Occassionally on calls we get what sounds like low volume channel > bleedover. Not clear enough to make out words, but not echo of either > side of the main coversation. We're using a Digium card with 11 > channels connected to PSTN lines. Any ideas on what the problem is or > how to go about troubleshooting?I imagine you're talking about a TDM2400 here (you don't specifically mention, but 11 lines suggests that is the case) -- I would first check your gains and wiring; the TDM card shouldn't have any design issues which would cause crosstalk like this, and once the information is digitized it's impossible to get this effect unintentionally. However it is trivial to have high gains (or improper attenuation) cause crosstalk on analog circuits, especially poorly wired cross-connects. -A.
Paul A. Pringle wrote:> Occassionally on calls we get what sounds like low volume channel > bleedover. Not clear enough to make out words, but not echo of either > side of the main coversation. We're using a Digium card with 11 > channels connected to PSTN lines. Any ideas on what the problem is or > how to go about troubleshooting?A "Digium card"? Can you be slightly more specific? Generally speaking, you should contact Digium Support when you have issues with Digium hardware, as they are best equipped to deal with these issues.