ZTMONITOR CAN2,3, etc.

Jeff Stohl Sat, 14 Feb 2004 19:16:46 -0800

I can hear the echo of my own voice as soon as the X100P clicks over to the POTS line to dial the call so I am positive it is not the end party. There is no echo between IP calls across country. As suggested by another user, I've replaced the cabling and tried two seperate POTS lines wired into seperate jacks.

I spoke with several people in the digium IRC room who had the same problem and the long and the short of it seemed to be not to use the X100P and either suck it up and do POTS into a channel bank or go straight PRI into a T-1.

I just purchased a VoiceTronix 4 port FXO card, I'll report my results on that front once complete.

Thanks,
Jeff

From: Tilghman Lesher <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: [Asterisk-Users] X100P / Echo / ZTMONITOR CAN2,3, etc.
Date: Fri, 13 Feb 2004 20:59:15 -0600

On Thursday 12 February 2004 19:48, Jeff Stohl wrote:
> My echo is really bad on the dialing out line only, the other user
> has a perfect reception. The inside user has just a horrible echo
> back of their voice. I've tried various echo canel methods in
> zapata.conf as well as regular TX/RX gains. I tried running ztmonitor
> 1 -v and the ztmonitor RX and TX charts came up but did not provide
> any display back so I was unable to find some better TX/RX. I tried
> several settings but those didn't help.

If you're getting echo of your own voice, but the remote is getting a
clear signal, then Asterisk echo cancellation is working properly.  It
is the remote provider not echo cancelling properly.

Think of the echo in this way:  what you're hearing is your voice on
the remote receiver being picked up by the remote microphone and
sent back to you.

You might ask your remote party not to use a speakerphone and to
press the receiver tightly against his/her ear, as this will dampen the
sound detected by the microphone and lessen the echo.

-Tilghman

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Re: [Asterisk-Users] X100P / Echo / ZTMONITOR CAN2,3, etc.

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