Re: [Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2006-02-10 Thread David K Parker
Oh, forgot... from what I understand, my problem was due to an impedence mismatch. This adjusts the DB levels to compensate. I spent many many hours following the various guidelines for combatting echo, but with one 2 minute conversation with Mark, he was able to pin it down. The key I believe was

Re: [Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2006-02-10 Thread Sean Cook
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 hmmm... I have not found this documented anywhere... ;) Can you explain the rationale a bit? Sean David K Parker wrote: > My problem is solved by doing the following. Many thanks to Mark > Spencer for clueing me in... > > > search for the followin

Re: [Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2006-02-10 Thread David K Parker
My problem is solved by doing the following. Many thanks to Mark Spencer for clueing me in...search for the following string in wctdm.c:/* Enable on-hook line monitor */After the "wctdm_setreg" function add the following lines: /* Apply negative Tx gain of 4.5db to DAA */        wctdm_setreg(wc, ca

Re: [Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2005-12-10 Thread David K Parker
I hadn't heard of fxotune. I'll check it out. I had a little bit better luck today after replacing a 25 ft cable on the pstn side with a 7 ft cable. I'm beginning to wonder about ztmonitor though. Before replacing the cable I had to adjust Rx to 22 and Tx to - 7.5. Ztmonitor still showed the Tx gai

Re: [Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2005-12-09 Thread Matthew Fredrickson
On Dec 9, 2005, at 9:48 AM, David K Parker wrote: I have a Digium TDM11B, I'm fighting an issue with with echo on the PSTN side. I run [EMAIL PROTECTED] 2.0. I have an analog phone on the FXS channel 1 and Telco on the FXS channel 4. I also have a coupe of softphones, 1 iax2, the other sip, a

[Asterisk-Users] Echo PSTN [EMAIL PROTECTED] 2.0 Digium TDM11B & DSL

2005-12-09 Thread David K Parker
I have a Digium TDM11B, I'm fighting an issue with with echo on the PSTN side. I run [EMAIL PROTECTED] 2.0. I have an analog phone on the FXS channel 1 and Telco on the FXS channel 4. I also have a coupe of softphones, 1 iax2, the other sip, and a LinkSys Sipura 941. I use a VOIP provider for long