[Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. I've got dozens of X100P based systems and have only had echo trouble on 4 systems. All of them were solved by tweaking the various settings in the Zaptel Makefile and in zapata.conf or calling the telco and bitching, loudly. Jeremy McNamara ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Excuse my ignorance, but could someone explain what tip and ring is and how I ensure/test that it is wired correctly? Thanks, Ed -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Brown (CV) Sent: Sunday, November 16, 2003 10:54 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Just to be sure again, I did a reversal on the tip and ring with no improvement. -Original Message- From: John Brown (CV) [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:54 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
On Sun, Nov 16, 2003 at 11:11:06AM -0800, Ed Rubright wrote: Excuse my ignorance, but could someone explain what tip and ring is and how I ensure/test that it is wired correctly? In the old days, phone plugs looked like 1/4 phono jacks There was the TIP of the jack and the RING at the base of the jack. Hence TIP and RING The easiest way is to go spend $10 at your local radio shack and buy a polarity tester. TIP/RING issues also used to cause speed problems with Pre V.90 modems. Most modern modems today have auto polarity sense / fix hardware built in.. John Brown Chagres Technologies, Inc Thanks, Ed -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Brown (CV) Sent: Sunday, November 16, 2003 10:54 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Ok, then I'd suggest that you need to carefully comb thru your echo settings. Keep in mind that you will need to STOP NOW your server for hardware changes. Some will disagree with this, but thats been my experience. Like JerJer, I've got boxes with X100P cards and no echo issues once I got TIP/RING and echo settings correct. john brown chagres technologies On Sun, Nov 16, 2003 at 02:18:55PM -0500, Kevin wrote: Just to be sure again, I did a reversal on the tip and ring with no improvement. -Original Message- From: John Brown (CV) [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:54 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Hi John, Thanks for the info. I'll be stopping by Radio Shack to pickup a polairy tester. I have 2 X100P and 1 TDM400 card. I will be adding a SIP phone here in the next week or so. What do you recommend for the following: - What echo cancellation settings in the zaptel makefile? - What echo settings in the zapata.conf for the X100P interfaces? - What echo settings in the zapata.conf for the TDM400 interfaces? Thanks in advance for you assistance! Ed -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Brown (CV) Sent: Sunday, November 16, 2003 11:22 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO On Sun, Nov 16, 2003 at 11:11:06AM -0800, Ed Rubright wrote: Excuse my ignorance, but could someone explain what tip and ring is and how I ensure/test that it is wired correctly? In the old days, phone plugs looked like 1/4 phono jacks There was the TIP of the jack and the RING at the base of the jack. Hence TIP and RING The easiest way is to go spend $10 at your local radio shack and buy a polarity tester. TIP/RING issues also used to cause speed problems with Pre V.90 modems. Most modern modems today have auto polarity sense / fix hardware built in.. John Brown Chagres Technologies, Inc Thanks, Ed -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Brown (CV) Sent: Sunday, November 16, 2003 10:54 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
On Sun, 2003-11-16 at 19:50, Jeremy McNamara wrote: I've got dozens of X100P based systems and have only had echo trouble on 4 systems. All of them were solved by tweaking the various settings in the Zaptel Makefile and in zapata.conf or calling the telco and bitching, loudly. Earlier this evening I did a complete Checkout of Zaptel and therefore put the makefile to default, afterwards I had terrific echo. With the following settings there is no echo for me on a France Telecom line with X100P to a Grandstream. # Pick your echo canceller: MARK2, MARK3, STEVE, or STEVE2 :) # #KFLAGS+=-DECHO_CAN_STEVE #KFLAGS+=-DECHO_CAN_STEVE2 #KFLAGS+=-DECHO_CAN_MARK KFLAGS+=-DECHO_CAN_MARK2 #KFLAGS+=-DECHO_CAN_MARK3 # # Uncomment for aggressive residual echo supression under # MARK2 echo canceller # KFLAGS+=-DAGGRESSIVE_SUPPRESSOR zapata.conf is rxgain = 0.0 txgain = 0.0 Hope this helps someone. -- Dave Cotton [EMAIL PROTECTED] ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Having spent 21 years in a telephone company as an engineer, reversing tip ring will have zero impact on any 2-wire fx pstn line. The equipment in the central office (regardless of who the manufacturer happens to be) is balanced and supplies -48 volts that is fed through the outside plant to your location. The x100p card (and equivalents) do not care whether the tip and ring are reversed. If the cards really cared, they would totally fail and not just create an echo condition. (Polarity can be an issue with some other equipment, and with some types of central office trunks, but not the stuff we're talking about here.) Echo is frequently produced by external 2-wire imbalances or imperfections on the pstn line, and not by the x100p (etc) card itself. You can create an example of imbalance by placing a resister from ground to either tip or ring (not both). Some real world examples are: - wet or damaged pstn cable - bridge-taps (something done by the telco, seldom seen any more) - cheap analog phones attached to the pstn line - some expensive analog phones on the pstn line - use of lengthy untwisted inside-wire within your home/business - poor cabling techniques (inside-wire near ballast or other AC induction) - as well as many other problems external to the asterisk cards In many cases, the imperfections may be bad enough that you might even hear AC hum, noise, crosstalk, or other degradation by listening very carefully with an ordinary analog phone. (If you can hear any imperfections, the problem is rather bad.) The echo cancel function is attempting to compensate for those imperfections and imbalances. One can either muck with the echo canceling software or go find the real source of the problem. (Incidently, that's why some people are having echo problems on this list and others don't.) Given how many of our offices/labs look in terms of cabling, etc, one rather simple step to help find the source of problems is to simply run shielded twisted pair cable between the asterisk interface and the telco demarc (ensuring the shield is actually grounded), remove _all_ other cabling and phones from the line, and verify the asterisk box is running on clean AC power with an appropriate ground. (If you find the echo is gone or better, start adding those items back one at a time to see which item(s) is causing the problem. Then post it to the list so the rest of us can learn from it.) Most of the US telco's have technicians with the equipment necessary to help find the problem if the problem really is their outside plant. However, getting to that person can be a real challenge. Rich Just to be sure again, I did a reversal on the tip and ring with no improvement. -Original Message- The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Also keep in mind if you don't come straight from the dmarc to the x100p you might have echo also: PSTN == X100P == * SERVER | | PHONE If you do the above you will get mad echo in some cases. :P I have 3 x100p's with only about 3-5 seconds of echo at the begining of the call. bkw On Sun, 16 Nov 2003, John Brown (CV) wrote: Ok, then I'd suggest that you need to carefully comb thru your echo settings. Keep in mind that you will need to STOP NOW your server for hardware changes. Some will disagree with this, but thats been my experience. Like JerJer, I've got boxes with X100P cards and no echo issues once I got TIP/RING and echo settings correct. john brown chagres technologies On Sun, Nov 16, 2003 at 02:18:55PM -0500, Kevin wrote: Just to be sure again, I did a reversal on the tip and ring with no improvement. -Original Message- From: John Brown (CV) [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:54 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO The echo issues are line or PSTN. make sure your tip and ring are correctly wired. Polarity does matter and teh X100P does not do polarity fixing like most consumer phones today. john brown chagres technologies, inc http://www.chagres.net/products/voip/ On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote: I do support Asterisk. I have a TDM40B and X100P from Digium, I can't take the echo on the X100P. -Original Message- From: Jeremy McNamara [mailto:[EMAIL PROTECTED] Sent: Sunday, November 16, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO Kevin wrote: Has anyone seen an FXO converter for a Cisco ATA. There is someone selling a device on Ebay that claims to convert a Cisco ATA FXS port to an FXO. FX-200 VOIP PORT CONVERTER FXS to FXO http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3057281388 Don't bother. Support Asterisk and pick up a X100P from Digium. You will have more hair and less stress. Jeremy ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
Having spent 21 years in a telephone company as an engineer, reversing tip ring will have zero impact on any 2-wire fx pstn line. The equipment Why in some cases does it infact fix the echo issues? bkw ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
