Re: Ringing problems was [Asterisk-Users] TDM400P Revision question.
Rich Adamson responded to an earlier reply (not from me) Eric, those links have nothing to do with his stated problem. The problem is 105v AC on the pstn line when on-hook and no ringing. No, he says the issue is about ringing and strange voltages on his Digium TDM400 FXS ports, not the PSTN line. He measures 107 VAC on the line with the phone on hook and not ringing. Are we sure this is measured across the line and not from one side of the line to ground? If there were 107 volts AC on the pair, and there was any current available, the phone would ring all the time. Since it doesn't, it's likely to be a faulty meter or (more likely) a high resistance ground fault in the PC power supply providing a sneak path for a few microamps of power line voltage to get to the pair. Check grounding of the PC case. The basic problem however is that (assuming the meter is right) there is only 45 volts during the ring interval. This is not enough for most ringers. Try boostringer=1 as suggested by the last response and check the ring voltage then. Many ringers need at least 75 volts to function properly. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
-Original Message- From: Rich Adamson [mailto:[EMAIL PROTECTED] As far as the issue with DC voltage on the POTS line only being 43.8 DC, my guess was that is just an issue with voltage drop on the line because of distance between me and the CO. No possible way. If everything is truly on hook, there isn't any current draw and therefore no way for a voltage drop to occur. Basic ohm's law. If he's not using a high-impedance voltmeter, the meter might be loading the circuit down. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
I don't know how everyone else is doing but my woes are continuing. Hardware: Digium TDM400P (REV G according to the silk screening on the board) 2xFX0, 2xFXS purchased in August/September 2004 Dell Precision 420 (PIII-733, 512MB RAM nothing fancy but not doing too much either) Software: Zaptel, Libpri and Asterisk (v1-0) downloaded and re-compiled from CVS today (April 17) SuSE 9.1 (Kernel 2.6.4-52-default) configured as a life-support system for Asterisk only... no other apps running. Here's are my issues: 1. dmesg reports the card as Revision E/F although Rev G visually confirmed (see below) Zapata Telephony Interface Registered on major 196 PCI: Found IRQ 11 for device :03:05.0 PCI: Sharing IRQ 11 with :00:1f.3 Freshmaker version: 71 Freshmaker passed register test Module 0: Installed -- AUTO FXO (FCC mode) Module 1: Installed -- AUTO FXO (FCC mode) Module 2: Installed -- AUTO FXS/DPO Module 3: Installed -- AUTO FXS/DPO Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? 3. Rogue on-hook 109V AC voltage (11V AC off-hook) on both FXS ports. I have conformed that it is being generated by the card itself. I repeat, it is not being induced on the wire. After finding it a the wall jack I was able to sample the same 109V AC at the card itself with no cables attached. 4. Random calls dropped on the FXO ports from both FXS and SIP clients. The drop is usually preceded by a 2-3 second buzzing sound on the line. This occurs with both incoming and outgoing calls. It should be noted that the card is sharing an IRQ with another device (the USB controller to be exact). No matter what slot the card is inserted in it ends up sharing an IRQ. To that end I made sure it was sharing with an unused device (no USB devices attached). Looking for help here... Thanks, Ian ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
So the only thing you have not done is tried the cards in a different system with a different motherboard. It is WELL KNOWN that the cards will not work well if they are shareing interrupts with another device. Ian Pattison wrote: I don't know how everyone else is doing but my woes are continuing. Hardware: Digium TDM400P (REV G according to the silk screening on the board) 2xFX0, 2xFXS purchased in August/September 2004 Dell Precision 420 (PIII-733, 512MB RAM nothing fancy but not doing too much either) Software: Zaptel, Libpri and Asterisk (v1-0) downloaded and re-compiled from CVS today (April 17) SuSE 9.1 (Kernel 2.6.4-52-default) configured as a life-support system for Asterisk only... no other apps running. Here's are my issues: 1. dmesg reports the card as Revision E/F although Rev G visually confirmed (see below) Zapata Telephony Interface Registered on major 196 PCI: Found IRQ 11 for device :03:05.0 PCI: Sharing IRQ 11 with :00:1f.3 Freshmaker version: 71 Freshmaker passed register test Module 0: Installed -- AUTO FXO (FCC mode) Module 1: Installed -- AUTO FXO (FCC mode) Module 2: Installed -- AUTO FXS/DPO Module 3: Installed -- AUTO FXS/DPO Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? 3. Rogue on-hook 109V AC voltage (11V AC off-hook) on both FXS ports. I have conformed that it is being generated by the card itself. I repeat, it is not being induced on the wire. After finding it a the wall jack I was able to sample the same 109V AC at the card itself with no cables attached. 4. Random calls dropped on the FXO ports from both FXS and SIP clients. The drop is usually preceded by a 2-3 second buzzing sound on the line. This occurs with both incoming and outgoing calls. It should be noted that the card is sharing an IRQ with another device (the USB controller to be exact). No matter what slot the card is inserted in it ends up sharing an IRQ. To that end I made sure it was sharing with an unused device (no USB devices attached). Looking for help here... Thanks, Ian ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
On April 18, 2005 02:07 pm, Eric Wieling aka ManxPower wrote: So the only thing you have not done is tried the cards in a different system with a different motherboard. It is WELL KNOWN that the cards will not work well if they are shareing interrupts with another device. While this is true, the AC on the line I am willing to put good money on being a module problem. not work well manifests itself as noise, chirping, dropped calls, etc. NOT ringing voltage... I could, however, be wrong. It won't be the first time. :-) -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
On April 18, 2005 02:07 pm, Eric Wieling aka ManxPower wrote: So the only thing you have not done is tried the cards in a different system with a different motherboard. It is WELL KNOWN that the cards will not work well if they are shareing interrupts with another device. While this is true, the AC on the line I am willing to put good money on being a module problem. not work well manifests itself as noise, chirping, dropped calls, etc. NOT ringing voltage... I could, however, be wrong. It won't be the first time. :-) I would definitely second Andrew's comment relative to a bad module(s). ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
See inline responses... On Mon, 18 Apr 2005 10:43:30 -0400 Ian Pattison [EMAIL PROTECTED] wrote: I don't know how everyone else is doing but my woes are continuing. Hardware: Digium TDM400P (REV G according to the silk screening on the board) 2xFX0, 2xFXS purchased in August/September 2004 Dell Precision 420 (PIII-733, 512MB RAM nothing fancy but not doing too much either) Software: Zaptel, Libpri and Asterisk (v1-0) downloaded and re-compiled from CVS today (April 17) SuSE 9.1 (Kernel 2.6.4-52-default) configured as a life-support system for Asterisk only... no other apps running. Here's are my issues: 1. dmesg reports the card as Revision E/F although Rev G visually confirmed (see below) Zapata Telephony Interface Registered on major 196 PCI: Found IRQ 11 for device :03:05.0 PCI: Sharing IRQ 11 with :00:1f.3 Freshmaker version: 71 Freshmaker passed register test Module 0: Installed -- AUTO FXO (FCC mode) Module 1: Installed -- AUTO FXO (FCC mode) Module 2: Installed -- AUTO FXS/DPO Module 3: Installed -- AUTO FXS/DPO Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? The reason you are still seeing low ring voltage is due to the fact that the module is not using the boostringer when it is being loaded. If it were, you would see PCI: Found IRQ 14 for device 00:08.0 Freshmaker version: 71 Freshmaker passed register test Boosting ringinger on slot 1 (89V peak) Module 0: Installed -- AUTO FXS/DPO Module 1: Not installed Module 2: Not installed Module 3: Installed -- AUTO FXO (FCC mode) Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) Registered tone zone 0 (United States / North America) Notice the line in there about bossting the ringer to 89V peak. I am not seeing that in yours. 3. Rogue on-hook 109V AC voltage (11V AC off-hook) on both FXS ports. I have conformed that it is being generated by the card itself. I repeat, it is not being induced on the wire. After finding it a the wall jack I was able to sample the same 109V AC at the card itself with no cables attached. No clue... 4. Random calls dropped on the FXO ports from both FXS and SIP clients. The drop is usually preceded by a 2-3 second buzzing sound on the line. This occurs with both incoming and outgoing calls. It should be noted that the card is sharing an IRQ with another device (the USB controller to be exact). No matter what slot the card is inserted in it ends up sharing an IRQ. To that end I made sure it was sharing with an unused device (no USB devices attached). Are you using the USB for anything?? If not, turn it off in your BIOS if you have the option and don't even let it load. Looking for help here... Thanks, Ian ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
Hello, In FC3, i had to set wctdm options in /etc/modprobe.conf (it may be modules.conf in other distros): options wctdm boostringer=1 debug=1 Julian J. M. On 4/18/05, Ian Pattison [EMAIL PROTECTED] wrote: 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
Ok... here's my module loading process... am I missing something? modprobe zaptel modprobe wcfxs boostringer=1 (btw: this one takes about 5 seconds. The others are almost instant) modprobe wcfxo ztcfg -vv This is correct is it not? Robert Webb [EMAIL PROTECTED] 18/04/2005 16:06 See inline responses... On Mon, 18 Apr 2005 10:43:30 -0400 Ian Pattison [EMAIL PROTECTED] wrote: 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? The reason you are still seeing low ring voltage is due to the fact that the module is not using the boostringer when it is being loaded. If it were, you would see PCI: Found IRQ 14 for device 00:08.0 Freshmaker version: 71 Freshmaker passed register test Boosting ringinger on slot 1 (89V peak) Module 0: Installed -- AUTO FXS/DPO Module 1: Not installed Module 2: Not installed Module 3: Installed -- AUTO FXO (FCC mode) Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) Registered tone zone 0 (United States / North America) Notice the line in there about bossting the ringer to 89V peak. I am not seeing that in yours. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
I don't know how everyone else is doing but my woes are continuing. I'm really starting to dislike these Digium cards. Hardware: Digium TDM400P (REV G according to the silk screening on the board) 2xFX0, 2xFXS purchased in August/September 2004 Dell Precision 420 (PIII-733, 512MB RAM nothing fancy but not doing too much either) Software: Zaptel, Libpri and Asterisk (v1-0) downloaded and re-compiled from CVS today (April 17) SuSE 9.1 (Kernel 2.6.4-52-default) configured as a life-support system for Asterisk only... no other apps running. Here's are my issues: 1. dmesg reports the card as Revision E/F although Rev G visually confirmed (see below) Zapata Telephony Interface Registered on major 196 PCI: Found IRQ 11 for device :03:05.0 PCI: Sharing IRQ 11 with :00:1f.3 Freshmaker version: 71 Freshmaker passed register test Module 0: Installed -- AUTO FXO (FCC mode) Module 1: Installed -- AUTO FXO (FCC mode) Module 2: Installed -- AUTO FXS/DPO Module 3: Installed -- AUTO FXS/DPO Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? 3. Rogue on-hook 109V AC voltage (11V AC off-hook) on both FXS ports. I have conformed that it is being generated by the card itself. I repeat, it is not being induced on the wire. After finding it a the wall jack I was able to sample the same 109V AC at the card itself with no cables attached. 4. Random calls dropped on the FXO ports from both FXS and SIP clients. The drop is usually preceded by a 2-3 second buzzing sound on the line. This occurs with both incoming and outgoing calls. It should be noted that the card is sharing an IRQ with another device (the USB controller to be exact). No matter what slot the card is inserted in it ends up sharing an IRQ. To that end I made sure it was sharing with an unused device (no USB devices attached). Looking for help here... Thanks, Ian ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
Hi, You could try disabling the USB in the BIOS setup to see if it stops sharing the interrupt. Regards, Neal -Original Message- From: Ian Pattison [SMTP:[EMAIL PROTECTED] Sent: Sunday, April 17, 2005 6:52 PM To: asterisk-users@lists.digium.com Subject:Re: [Asterisk-Users] TDM400P Revision question. I don't know how everyone else is doing but my woes are continuing. I'm really starting to dislike these Digium cards. Hardware: Digium TDM400P (REV G according to the silk screening on the board) 2xFX0, 2xFXS purchased in August/September 2004 Dell Precision 420 (PIII-733, 512MB RAM nothing fancy but not doing too much either) Software: Zaptel, Libpri and Asterisk (v1-0) downloaded and re-compiled from CVS today (April 17) SuSE 9.1 (Kernel 2.6.4-52-default) configured as a life-support system for Asterisk only... no other apps running. Here's are my issues: 1. dmesg reports the card as Revision E/F although Rev G visually confirmed (see below) Zapata Telephony Interface Registered on major 196 PCI: Found IRQ 11 for device :03:05.0 PCI: Sharing IRQ 11 with :00:1f.3 Freshmaker version: 71 Freshmaker passed register test Module 0: Installed -- AUTO FXO (FCC mode) Module 1: Installed -- AUTO FXO (FCC mode) Module 2: Installed -- AUTO FXS/DPO Module 3: Installed -- AUTO FXS/DPO Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules) 2. Low ringing voltage still (~44V AC). I have used the boostringer=1 option when loading wcfxs, did I miss something at compile time? 3. Rogue on-hook 109V AC voltage (11V AC off-hook) on both FXS ports. I have conformed that it is being generated by the card itself. I repeat, it is not being induced on the wire. After finding it a the wall jack I was able to sample the same 109V AC at the card itself with no cables attached. 4. Random calls dropped on the FXO ports from both FXS and SIP clients. The drop is usually preceded by a 2-3 second buzzing sound on the line. This occurs with both incoming and outgoing calls. It should be noted that the card is sharing an IRQ with another device (the USB controller to be exact). No matter what slot the card is inserted in it ends up sharing an IRQ. To that end I made sure it was sharing with an unused device (no USB devices attached). Looking for help here... Thanks, Ian ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. That on-hook AC is a real problem if the voltmeter is accuate. Couple of things to try 1. Go to the demarc, disconnect the in-house wiring and measure the AC component again (only looking towards the telco's CO). 2. Disconnect asterisk and install an ordinary analog phone. Take the phone off-hook and measure the AC. If the value is very small, then the voltmeter is measuring induced AC on the unterminated wiring. (The phone being off-hook creates the termination.) Put the phone on-hook and measure again. If the value is large, then go looking for the source of the induced AC. Things like wall-warts, fluorescent light ballasts, any device with a transformer in it, electric motors (of some fairly large size), desktop high intensity lamps (with internal transformer), etc, can cause inducedAC if they are within inches of the wiring. Using a scope would be good, but it will only validate the voltmeter results; nothing more. If you're unsure about the quality of the voltmeter, borrow another one from someone and compare the results. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
Rich Adamson wrote: My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. That on-hook AC is a real problem if the voltmeter is accuate. Couple of things to try 1. Go to the demarc, disconnect the in-house wiring and measure the AC component again (only looking towards the telco's CO). 2. Disconnect asterisk and install an ordinary analog phone. Take the phone off-hook and measure the AC. If the value is very small, then the voltmeter is measuring induced AC on the unterminated wiring. (The phone being off-hook creates the termination.) Put the phone on-hook and measure again. If the value is large, then go looking for the source of the induced AC. Things like wall-warts, fluorescent light ballasts, any device with a transformer in it, electric motors (of some fairly large size), desktop high intensity lamps (with internal transformer), etc, can cause inducedAC if they are within inches of the wiring. Using a scope would be good, but it will only validate the voltmeter results; nothing more. If you're unsure about the quality of the voltmeter, borrow another one from someone and compare the results. Doesn't anyone use Google anymore? http://lists.digium.com/pipermail/asterisk-users/2005-April/098934.html Also: http://www.google.com/search?hl=enq=site%3Alists.digium.com+boostringerbtnG=Google+Search -- Always do right. This will gratify some people and astonish the rest. Mark Twain ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. That on-hook AC is a real problem if the voltmeter is accuate. Couple of things to try 1. Go to the demarc, disconnect the in-house wiring and measure the AC component again (only looking towards the telco's CO). 2. Disconnect asterisk and install an ordinary analog phone. Take the phone off-hook and measure the AC. If the value is very small, then the voltmeter is measuring induced AC on the unterminated wiring. (The phone being off-hook creates the termination.) Put the phone on-hook and measure again. If the value is large, then go looking for the source of the induced AC. Things like wall-warts, fluorescent light ballasts, any device with a transformer in it, electric motors (of some fairly large size), desktop high intensity lamps (with internal transformer), etc, can cause inducedAC if they are within inches of the wiring. Using a scope would be good, but it will only validate the voltmeter results; nothing more. If you're unsure about the quality of the voltmeter, borrow another one from someone and compare the results. Doesn't anyone use Google anymore? http://lists.digium.com/pipermail/asterisk-users/2005-April/098934.html Also: http://www.google.com/search?hl=enq=site%3Alists.digium.com+boostringerbtnG=Google+Search Eric, those links have nothing to do with his stated problem. The problem is 105v AC on the pstn line when on-hook and no ringing. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
Rich Adamson wrote: My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. That on-hook AC is a real problem if the voltmeter is accuate. Couple of things to try 1. Go to the demarc, disconnect the in-house wiring and measure the AC component again (only looking towards the telco's CO). 2. Disconnect asterisk and install an ordinary analog phone. Take the phone off-hook and measure the AC. If the value is very small, then the voltmeter is measuring induced AC on the unterminated wiring. (The phone being off-hook creates the termination.) Put the phone on-hook and measure again. If the value is large, then go looking for the source of the induced AC. Things like wall-warts, fluorescent light ballasts, any device with a transformer in it, electric motors (of some fairly large size), desktop high intensity lamps (with internal transformer), etc, can cause inducedAC if they are within inches of the wiring. Using a scope would be good, but it will only validate the voltmeter results; nothing more. If you're unsure about the quality of the voltmeter, borrow another one from someone and compare the results. Doesn't anyone use Google anymore? http://lists.digium.com/pipermail/asterisk-users/2005-April/098934.html Also: http://www.google.com/search?hl=enq=site%3Alists.digium.com+boostringerbtnG=Google+Search Eric, those links have nothing to do with his stated problem. The problem is 105v AC on the pstn line when on-hook and no ringing. The first line of this message says My specific issue has to do with ringing on my FXS ports. -- Always do right. This will gratify some people and astonish the rest. Mark Twain ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC We can only assume the above represents a fxs module on the card. Correct? I would find it hard to believe that changing slots would cause the on hook DC voltage to change from 43v to 48v. That smells like a funcky voltmeter. Slots should have nothing to do with DC voltage unless the module is simply bad. The AC (ringing) voltage is reasonable, but again it should not have changed simply because of a slot change; again, questionable voltmeter. On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC The on hook DC voltage from all US telco's will factually be in the 48v to 52v range. If their central office equipment produced 43 volts, they would have alarms going off all over the place. Their alarms would trigger somewhere in the 46 to 48 volt range. So, that measurement implies the voltmeter is not accurate. The AC (ringing) voltage is well within acceptable telco limits and can range from about 70v to upwards of 105v. Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Doubtful that is an issue. The reason for saying that is the chipset used on the fxo fxs modules was manufactured by Silicon Labs, and those same chipsets are used in other telephony equipment worldwide. Silicon Labs is known for good to excellent products. If their chipsets didn't function correctly, there would have been a large uprising a couple of years ago when those chips were first produced. That hasn't happened, and they don't have a lengthy chip revision history. Asterisk code does not have any control over adding/removing the DC component during ringing, so that's not an issue either. Doubtful that adding/removal the DC component would have any impact on normal telephone sets, however there certainly could be funcky sets that don't like that DC removal. Given the number of postings relative to the TDM card lately, I don't remember exactly what your ringing issue was. Could you remind us without deleting the significant parts of the above? ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
On Thu, 14 Apr 2005 08:14:37 -0600 Rich Adamson [EMAIL PROTECTED] wrote: I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC We can only assume the above represents a fxs module on the card. Correct? I would find it hard to believe that changing slots would cause the on hook DC voltage to change from 43v to 48v. That smells like a funcky voltmeter. Slots should have nothing to do with DC voltage unless the module is simply bad. The AC (ringing) voltage is reasonable, but again it should not have changed simply because of a slot change; again, questionable voltmeter. On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC The on hook DC voltage from all US telco's will factually be in the 48v to 52v range. If their central office equipment produced 43 volts, they would have alarms going off all over the place. Their alarms would trigger somewhere in the 46 to 48 volt range. So, that measurement implies the voltmeter is not accurate. The AC (ringing) voltage is well within acceptable telco limits and can range from about 70v to upwards of 105v. Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Doubtful that is an issue. The reason for saying that is the chipset used on the fxo fxs modules was manufactured by Silicon Labs, and those same chipsets are used in other telephony equipment worldwide. Silicon Labs is known for good to excellent products. If their chipsets didn't function correctly, there would have been a large uprising a couple of years ago when those chips were first produced. That hasn't happened, and they don't have a lengthy chip revision history. Asterisk code does not have any control over adding/removing the DC component during ringing, so that's not an issue either. Doubtful that adding/removal the DC component would have any impact on normal telephone sets, however there certainly could be funcky sets that don't like that DC removal. Given the number of postings relative to the TDM card lately, I don't remember exactly what your ringing issue was. Could you remind us without deleting the significant parts of the above? Even though it is long, I will leave everything intact. I have had a few issues with dropped calls when using the FXS to FXO connection. Not sure what the issue is with that. THe main issue I have is with the ringing on the FXS card. I have three differnt brands of phones and all three do the same thing. I might get two or three calls in where everything works fine. But then the next one will cause intermittent ringing one all phones and no data for caller id. I have tried every combination of the phones I have that is possible. From only one of each type hooked directly to the FXS card to hooking the card to my internal house wiring and using various combos of the phones connected. It almost acts like the phones are requiring just a hair more ring voltage to work properly. That is why I was testing the voltage levels. I will try and grab a different meter to test with. The system is a PIII 933MHZ, VIA chipset and has a 500 watt power supply in it. So I don not think it is a power issue from the computer itself. The reason I asked about the DC offset during ringing, is that on the telco side, I noticed that the offset remained even when ringing voltage was applied. On the TDM, it does not. In the manual for the chipset that someone sent me, there is the option to apply a DC offset voltage during ringing. Additionally, the telco side gives the 93 Volts AC when ringing where the TDM is
Re: [Asterisk-Users] TDM400P Revision question.
I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC We can only assume the above represents a fxs module on the card. Correct? I would find it hard to believe that changing slots would cause the on hook DC voltage to change from 43v to 48v. That smells like a funcky voltmeter. Slots should have nothing to do with DC voltage unless the module is simply bad. The AC (ringing) voltage is reasonable, but again it should not have changed simply because of a slot change; again, questionable voltmeter. On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC The on hook DC voltage from all US telco's will factually be in the 48v to 52v range. If their central office equipment produced 43 volts, they would have alarms going off all over the place. Their alarms would trigger somewhere in the 46 to 48 volt range. So, that measurement implies the voltmeter is not accurate. The AC (ringing) voltage is well within acceptable telco limits and can range from about 70v to upwards of 105v. Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Doubtful that is an issue. The reason for saying that is the chipset used on the fxo fxs modules was manufactured by Silicon Labs, and those same chipsets are used in other telephony equipment worldwide. Silicon Labs is known for good to excellent products. If their chipsets didn't function correctly, there would have been a large uprising a couple of years ago when those chips were first produced. That hasn't happened, and they don't have a lengthy chip revision history. Asterisk code does not have any control over adding/removing the DC component during ringing, so that's not an issue either. Doubtful that adding/removal the DC component would have any impact on normal telephone sets, however there certainly could be funcky sets that don't like that DC removal. Given the number of postings relative to the TDM card lately, I don't remember exactly what your ringing issue was. Could you remind us without deleting the significant parts of the above? Even though it is long, I will leave everything intact. I have had a few issues with dropped calls when using the FXS to FXO connection. Not sure what the issue is with that. THe main issue I have is with the ringing on the FXS card. I have three differnt brands of phones and all three do the same thing. I might get two or three calls in where everything works fine. But then the next one will cause intermittent ringing one all phones and no data for caller id. I have tried every combination of the phones I have that is possible. From only one of each type hooked directly to the FXS card to hooking the card to my internal house wiring and using various combos of the phones connected. It almost acts like the phones are requiring just a hair more ring voltage to work properly. That is why I was testing the voltage levels. I will try and grab a different meter to test with. There is a compile-time option to increase the ring voltage. I don't recall the specifics, but its likely in wctdm.c or an associated header file. (As you probably can tell, I don't use the fxs modules on my TDM card.) The system is a PIII 933MHZ, VIA chipset and has a 500 watt power supply in it. So I don
Re: [Asterisk-Users] TDM400P Revision question.
On Thu, 14 Apr 2005 10:59:11 -0600 Rich Adamson [EMAIL PROTECTED] wrote: I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC We can only assume the above represents a fxs module on the card. Correct? I would find it hard to believe that changing slots would cause the on hook DC voltage to change from 43v to 48v. That smells like a funcky voltmeter. Slots should have nothing to do with DC voltage unless the module is simply bad. The AC (ringing) voltage is reasonable, but again it should not have changed simply because of a slot change; again, questionable voltmeter. On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC The on hook DC voltage from all US telco's will factually be in the 48v to 52v range. If their central office equipment produced 43 volts, they would have alarms going off all over the place. Their alarms would trigger somewhere in the 46 to 48 volt range. So, that measurement implies the voltmeter is not accurate. The AC (ringing) voltage is well within acceptable telco limits and can range from about 70v to upwards of 105v. Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Doubtful that is an issue. The reason for saying that is the chipset used on the fxo fxs modules was manufactured by Silicon Labs, and those same chipsets are used in other telephony equipment worldwide. Silicon Labs is known for good to excellent products. If their chipsets didn't function correctly, there would have been a large uprising a couple of years ago when those chips were first produced. That hasn't happened, and they don't have a lengthy chip revision history. Asterisk code does not have any control over adding/removing the DC component during ringing, so that's not an issue either. Doubtful that adding/removal the DC component would have any impact on normal telephone sets, however there certainly could be funcky sets that don't like that DC removal. Given the number of postings relative to the TDM card lately, I don't remember exactly what your ringing issue was. Could you remind us without deleting the significant parts of the above? Even though it is long, I will leave everything intact. I have had a few issues with dropped calls when using the FXS to FXO connection. Not sure what the issue is with that. THe main issue I have is with the ringing on the FXS card. I have three differnt brands of phones and all three do the same thing. I might get two or three calls in where everything works fine. But then the next one will cause intermittent ringing one all phones and no data for caller id. I have tried every combination of the phones I have that is possible. From only one of each type hooked directly to the FXS card to hooking the card to my internal house wiring and using various combos of the phones connected. It almost acts like the phones are requiring just a hair more ring voltage to work properly. That is why I was testing the voltage levels. I will try and grab a different meter to test with. There is a compile-time option to increase the ring voltage. I don't recall the specifics, but its likely in wctdm.c or an associated header file. (As you probably can tell, I don't use the fxs modules on my TDM card.) Yes, I do know about the compile time option and it is enabled. Well, at least the ZAPTEL driver is saying it is. I will reload the driver without the
Re: [Asterisk-Users] TDM400P Revision question.
On Thu, 14 Apr 2005 12:45:44 -0400 Ian Pattison [EMAIL PROTECTED] wrote: My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. Thanks, Ian The one test I did not look at was off hook scenario. I will try that tonight. I am also going to call a friend of mine now and see if he has a line tester I can borrow to accurately measure the voltages. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
My specific issue has to do with ringing on my FXS ports. A Northen Telecom Harmony phone (circa 1983) rings normally but when I connect my newer GE 2.4GHz cordless I never get more than 1/2 ring (it lights up and works fine... just can't get a ring from it). Normally I'd assume that it's a low power issue on the FXS port but with a phone rated at 0.1 REM? I do have some strange voltages though ON-Hook: ~48V DC, 107V AC (this really concerns me...) Off-hook: ~6V DC, ~12VAC (where the hell is this AC component coming from???) Ring: 0V DC, ~45V AC Suffice it to say that electrically this is completely out to lunch... I'd like to throw an oscilloscope on the line to see what's what but I'm having trouble finding one. Thanks, Ian [EMAIL PROTECTED] 14/04/2005 10:14 I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC We can only assume the above represents a fxs module on the card. Correct? I would find it hard to believe that changing slots would cause the on hook DC voltage to change from 43v to 48v. That smells like a funcky voltmeter. Slots should have nothing to do with DC voltage unless the module is simply bad. The AC (ringing) voltage is reasonable, but again it should not have changed simply because of a slot change; again, questionable voltmeter. On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC The on hook DC voltage from all US telco's will factually be in the 48v to 52v range. If their central office equipment produced 43 volts, they would have alarms going off all over the place. Their alarms would trigger somewhere in the 46 to 48 volt range. So, that measurement implies the voltmeter is not accurate. The AC (ringing) voltage is well within acceptable telco limits and can range from about 70v to upwards of 105v. Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Doubtful that is an issue. The reason for saying that is the chipset used on the fxo fxs modules was manufactured by Silicon Labs, and those same chipsets are used in other telephony equipment worldwide. Silicon Labs is known for good to excellent products. If their chipsets didn't function correctly, there would have been a large uprising a couple of years ago when those chips were first produced. That hasn't happened, and they don't have a lengthy chip revision history. Asterisk code does not have any control over adding/removing the DC component during ringing, so that's not an issue either. Doubtful that adding/removal the DC component would have any impact on normal telephone sets, however there certainly could be funcky sets that don't like that DC removal. Given the number of postings relative to the TDM card lately, I don't remember exactly what your ringing issue was. Could you remind us without deleting the significant parts of the above? ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
PLEASE!! trim these replies!!! -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] TDM400P Revision question.
On Mon, 11 Apr 2005 10:54:30 -0400 Robert Webb [EMAIL PROTECTED] wrote: Good morning all.. I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. I did some more testing today. I called Digium on 4/12 and they suggested some things to try, like different motherboard, switching pci slots, etc.. I did everything they asked, except for the mother switch as I do not have a different one to put in the system at this time. So, after all that, my ringing issue still persists. Too some measurements from bot the card and my POTS line in both the on-hook state and ringing state. I uses a digital multi-meter to make the measurements on both. Here are the results TDM400P Before slot change: On hook idle: 43.8 Volts DC 0Volts AC Ringing: 0Volts DC 56.4 Volts AC After slot change: On hook idle: 48.7 Volts DC 0Volts AC Ringing: 0Volts DC 65.5 Volts AC On my POTS line: On hook idle: 43.8 Volts DC .013 Volts AC Ringing: 50.5 Volts DC 93.9 Volts AC Could it bee that from the phone company they retain the DC offset voltage while applying a ring frequency and as it appears on the TDM it shuts off the DC offset when ringing starts. Could this be the issue with those of us in the U.S. having ringing issues with the TDM's?? Robert ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] TDM400P Revision question.
Sorry for the initial no subject line. Was in a hurry when I typed this and somehow missed putting it in. Please accept my apologies On Mon, 11 Apr 2005 10:54:30 -0400 Robert Webb [EMAIL PROTECTED] wrote: Good morning all.. I was following a discussion on this list about the TDM400P revisions. It is my understanding that the current revision that one should have is the Rev. H and not the E/F. I have not yet been able to verify the rev stamped on the board, but zaptel is reporting that I have the Rev. E/F. I just bought this card in January direct from Digium and was wondering if I got the wrong Rev. somehow?? I have been having some intermittent problems but only thought it was my setup. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
