Sound quality poor : help please

General Help
1

setup asterisk with TDM400P : 4 FXO module

local IP: 192.168.1.6

Create SIP 3 accounts

1001 ----> x-lite ----> 192.168.1.10
1002 -----> x-lite ----> 192.168.1.11
1003 -----> x-lite ----> 192.168.1.12

With the same ROUTER.

1FXO —> 6623544159
2FXO —> 6623544160
3FXO —> 6623544161
4FXO —> 6623544162

Create Inbound Call ------> Queue —> 1001,1002,1003

Sound Quality go really bad. What to do with the Setting

my dahdi config

; Span 1: WCTDM/4 “Wildcard TDM400P REV I Board 5” (MASTER)
;;; line="1 WCTDM/4/0 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 1
callerid=

;;; line="2 WCTDM/4/1 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 2
callerid=

;;; line="3 WCTDM/4/2 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 3
callerid=

;;; line="4 WCTDM/4/3 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 4
callerid=

my chan_dahdi.conf

[general]

#include chan_dahdi_general.conf

[channels]
usecallerid=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=800

; include dahdi groups defined by DAHDI module of FreePBX
#include chan_dahdi_groups.conf

; include dahdi extensions defined in FreePBX
#include chan_dahdi_additional.conf

, do I need to look anywhere , Could you guy really please tell me, thank you…

2

Are the phones on the same network as the server?
It’s application call x-lite setup on Windows 7 on Notebook. i think it’s client.
Server is 192.168.1.6 install asterisk .

Is the sound quality consistently bad or intermittent?
bad, ----> noise , echo , lag

This is what I had set with dahdi
http://img.ihere.org/uploads/e4225aabf7.jpg

Thank you for your nice comment.

3

Are the phones on the same network as the server?

Is the sound quality consistently bad or intermittent?

Have you set the levels with FXOTUNE? (see DAHDI documentation)