On 24 Jun 2006, at 02:43, James Harper wrote:
I've not used it with VoIP, but we have a speakerphone which we have
used on occasion in a meeting where someone was unable to attend.
When it is turned on, it sends out a 'ping' and measures the echo
response of the room, and perfectly cancels out all of the echo
thereafter, unless it is moved. If it is moved then the echo becomes
horrible.
A cheaper unit might not do echo cancellation quite as well.
James
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:asterisk-users-
[EMAIL PROTECTED] On Behalf Of T. Shaw
Sent: Saturday, 24 June 2006 03:48
To: asterisk-users@lists.digium.com
Subject: [Asterisk-Users] troubleshooting echo on speakerphone
Hello all,
I'm looking to troubleshoot some echo issues and possibly
"studdering"
while
using the speakerphone with the Intellitouch ITC3002. On the hardware
end,
i
have a 2621 setup as the router with some policy maps for qos, and a
2900XL
with cos priority set to 5. I have setup created 2 vlans currently
(really
small office), 1 for corp/data, and 2 voice vlan. Asterisk is on the
2nd
vlan as well as the phones and i have the 2621 doing intervlan
routing.
Currently we have VOIP calls coming in and out, but when calls are
placed
and speakerphone is utilized, the FAR end hears echo of themselves.
This
would happen regardless of who placed the call.
Any ideas on where i can start cutting down the echo problem?
The phones come with echo-cancellation and is turned on. Thephones
also
have
VAD but is currently not on. Would this make a difference while
utilizing
the speakerphone?
Terrelle
I know this isn't what you asked about, but we have been using this:
http://www.usr.com/products/voip/voip-product.asp?sku=USR9610
It's a USB device, but it has a decent built in echo can.
I had mine in the kitchen at home with a stone floor and tiled
walls, works a treat!
I had to buy another one as the managing director has mine!
His only complaint is that the speaker is a bit weak, but it has
a headphone output socket, which he plugged into a pair
of JBL speakers, and is _very_ happy with the result.
Tim Panton
[EMAIL PROTECTED]
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