[asterisk-users] Echo

[Alex Bell]

Jason,    Echo Hellooo old buddy! Do you evefr go 4 the dCap?
Your bud from the MD class.
Al

On Tue, Aug 25, 2009 at 4:43 PM, Jason Baker <jbaker at glastender.com> wrote:

>  I recently upgraded my Asterisk system to Dahdi and now I have an echo
> problem.
>
> I am running Asterisk 1.4.25 with Dahdi Complete 2.2.0, on a Digium
> TE121B PCI express card with a HARDWARE echo cancellation module. All
> this is housed on a CentOS 5.5 box, 2.6.18 Kernel. My incoming phone
> service is an AT&T PRI (24 channel T1).
>
> My configs:
>
> ********chan_dahdi.conf*********
>
> [channels]
> ; configuration for T1 card as PRI
> language = en
>
> group = 1
> echocancel = yes
> echotraining = yes
> signalling = pri_cpe
> switchtype = 4ess
> usecallerid = yes
> context = incoming
> channel => 1-23
>
>
> ***********/etc/dahdi/system.conf*************
> loadzone=us
> defaultzone=us
> span=1,0,0,esf,b8zs
> bchan=1-23
> dchan=24
>
> When I run dahdi_cfg -vvv I get the following:
>
> DAHDI Tools Version - 2.2.0
>
> DAHDI Version: 2.2.0.1
> Echo Canceller(s): MG2
> Configuration
> ======================
>
> SPAN 1: ESF/B8ZS Build-out: 0 db (CSU)/0-133 feet (DSX-1)
>
> Channel map:
>
> Channel 01: Clear channel (Default) (Echo Canceler: none) (Slaves: 01)
> Channel 02: Clear channel (Default) (Echo Canceler: none) (Slaves: 02)
> Channel 03: Clear channel (Default) (Echo Canceler: none) (Slaves: 03)
> Channel 04: Clear channel (Default) (Echo Canceler: none) (Slaves: 04)
> Channel 05: Clear channel (Default) (Echo Canceler: none) (Slaves: 05)
> Channel 06: Clear channel (Default) (Echo Canceler: none) (Slaves: 06)
> Channel 07: Clear channel (Default) (Echo Canceler: none) (Slaves: 07)
> Channel 08: Clear channel (Default) (Echo Canceler: none) (Slaves: 08)
> Channel 09: Clear channel (Default) (Echo Canceler: none) (Slaves: 09)
> Channel 10: Clear channel (Default) (Echo Canceler: none) (Slaves: 10)
> Channel 11: Clear channel (Default) (Echo Canceler: none) (Slaves: 11)
> Channel 12: Clear channel (Default) (Echo Canceler: none) (Slaves: 12)
> Channel 13: Clear channel (Default) (Echo Canceler: none) (Slaves: 13)
> Channel 14: Clear channel (Default) (Echo Canceler: none) (Slaves: 14)
> Channel 15: Clear channel (Default) (Echo Canceler: none) (Slaves: 15)
> Channel 16: Clear channel (Default) (Echo Canceler: none) (Slaves: 16)
> Channel 17: Clear channel (Default) (Echo Canceler: none) (Slaves: 17)
> Channel 18: Clear channel (Default) (Echo Canceler: none) (Slaves: 18)
> Channel 19: Clear channel (Default) (Echo Canceler: none) (Slaves: 19)
> Channel 20: Clear channel (Default) (Echo Canceler: none) (Slaves: 20)
> Channel 21: Clear channel (Default) (Echo Canceler: none) (Slaves: 21)
> Channel 22: Clear channel (Default) (Echo Canceler: none) (Slaves: 22)
> Channel 23: Clear channel (Default) (Echo Canceler: none) (Slaves: 23)
> Channel 24: D-channel (Default) (Echo Canceler: none) (Slaves: 24)
>
> 24 channels to configure.
>
> Setting echocan for channel 1 to none
> Setting echocan for channel 2 to none
> Setting echocan for channel 3 to none
> Setting echocan for channel 4 to none
> Setting echocan for channel 5 to none
> Setting echocan for channel 6 to none
> Setting echocan for channel 7 to none
> Setting echocan for channel 8 to none
> Setting echocan for channel 9 to none
> Setting echocan for channel 10 to none
> Setting echocan for channel 11 to none
> Setting echocan for channel 12 to none
> Setting echocan for channel 13 to none
> Setting echocan for channel 14 to none
> Setting echocan for channel 15 to none
> Setting echocan for channel 16 to none
> Setting echocan for channel 17 to none
> Setting echocan for channel 18 to none
> Setting echocan for channel 19 to none
> Setting echocan for channel 20 to none
> Setting echocan for channel 21 to none
> Setting echocan for channel 22 to none
> Setting echocan for channel 23 to none
> Setting echocan for channel 24 to none
>
>
> It is showing MG2 as the echo canceller, even though I don't have an echo
> canceller specified. Is that the harwdare module? Do I even need to specify
> an echo canceller in the configs if I have a hardware echo module? --
>
> *Jason Baker
> **IT Coordinator*
> * Glastender, Inc.*
> 5400 North Michigan Road
> Saginaw, Michigan 48604 USA
> Phone: 989.752.4275 ext. 228
> Fax: 989.752.4276
> www.glastender.com
>
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