I'm having a major problem at one of my branch offices with "Phantom Rings" on their asterisk-based phone system. The system was originally built using 2 X100P cards and was recently upgraded to a Rhino R4FXO-EC card. The upgrade severely increased the frequency of the phantom rings. I've read everything I can find on-line about automatic testing and noise on the line and have made several calls to Verizon with no solution to the problem. I know the telco switch that is feeding my analog lines is an old switch and can't even do CallerID with 2 lines in a rollover configuration. Audio quality on the line is perfect during voice calls. No static or other noise. I've asked for disconnect supervision to be added to the line, but It doesn't look like it's there. The line still seems to keep the channel open long after the far end hangs up. Has anyone else ever seen this problem or have any ideas how to eliminate it? Thanks, Brent Davidson
Quoting Brent Davidson <brent at texascountrytitle.com>:> I'm having a major problem at one of my branch offices with "Phantom > Rings" on their asterisk-based phone system. The system was originally > built using 2 X100P cards and was recently upgraded to a Rhino R4FXO-EC > card. The upgrade severely increased the frequency of the phantom > rings. I've read everything I can find on-line about automatic testing > and noise on the line and have made several calls to Verizon with no > solution to the problem. I know the telco switch that is feeding my > analog lines is an old switch and can't even do CallerID with 2 lines in > a rollover configuration. Audio quality on the line is perfect during > voice calls. No static or other noise. I've asked for disconnect > supervision to be added to the line, but It doesn't look like it's > there. The line still seems to keep the channel open long after the far > end hangs up. > > Has anyone else ever seen this problem or have any ideas how to > eliminate it?I had the phantom rings for years, once a day same time roughly every day, finally just got annoyed enough one day I trapped the telco on the phone with me till I finally got to talk to the right person. The "right person" knew instantly what I was talking about after months of previous denials. On DMS switches what you need to insist be added to your customer line profile is something called "NLT" or no line test. The "wrong person" can even look it up if you tell them the name of it - imagine that eh ?> > Thanks, > Brent Davidson > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >Jon Pounder _/_/_/ _/ _/ _/ _/_/_/ _/ _/ _/_/_/_/ _/ _/_/ _/ _/ _/ _/_/ _/ _/_/ _/ _/ _/_/ _/ _/ _/ _/_/ _/ _/_/_/ _/ _/ _/_/_/_/ _/_/_/ _/ _/ _/_/_/_/ Inline Internet Systems Inc. Thorold, Ontario, Canada Tools to Power Your e-Business Solutions www.inline.net www.ihtml.com www.ihtmlmerchant.com www.opayc.com
Brent Davidson wrote:> I'm having a major problem at one of my branch offices with "Phantom > Rings" on their asterisk-based phone system. The system was originally > built using 2 X100P cards and was recently upgraded to a Rhino R4FXO-EC > card. The upgrade severely increased the frequency of the phantom > rings. I've read everything I can find on-line about automatic testing > and noise on the line and have made several calls to Verizon with no > solution to the problem. I know the telco switch that is feeding my > analog lines is an old switch and can't even do CallerID with 2 lines in > a rollover configuration. Audio quality on the line is perfect during > voice calls. No static or other noise. I've asked for disconnect > supervision to be added to the line, but It doesn't look like it's > there. The line still seems to keep the channel open long after the far > end hangs up. > > Has anyone else ever seen this problem or have any ideas how to > eliminate it? >Brent, I had a similar problem and I feel for you, its frustrating. Are you using polycom phones by chance? Here is the problem that I had, not sure if your problem is related. Specs: - 6 Polycom 301 phones. - CentOS 4 Server with Asterisk 1.2.x - Sangoma A200 card with 3 FXO ports. Pretty simple settings for a small office where a group ring between all 6 polycoms was initiated once the call was received. After that it would go to a auto attendant and give the caller option to continue to hold, leave a message, etc. At any rate, once in a while, Caller ID would fail, either on the Sangoma card or somewhere in Asterisk, not sure, but CLI clearly showed an error on caller ID every once in a while when a POTS call came in. All six polycoms would ring, but when you picked up the handset or hit the Answer soft button, nothing would happen, you couldn't answer the call. The phones would just ring, and ring and ring for the duration of the group ring (about 60) and the customer was really annoyed since it was a small office. Continuing, the problem finally turned out to be the polycoms! When no caller ID information was present, the polycoms wigged out and while they did ring, you could not get the phones to pick up. I could readily replicate the behavior by initiating a Call File without specifying the caller ID information using the local channel. It would happen every time. Specifying the CID would allow the polycoms to work correctly. On the customer side, I did a quick GoToIf in their dialplan to see if the caller id info was set and if it wasn't I would set it manually to something like: CALLERID(num)=555-555-5555 CALLERID(name)=CID FAILURE That cleared up the problem. HIH -- Warm Regards, Lee