Background noise using Digium TE133F

Asterisk Asterisk Hardware
1

Hi everyone,

I just installed a digium TE133F voice card to our server and when we make an outbound call, it gives so much background noise. I have tried disabling the echo-cancellation, change it to oslec, mg2,kb1 and hwec. Please see below config:

etc/dahdi/system.conf

Span 1: WCT13x/0 “Wildcard TE131/TE133 Card 0” (MASTER) CCS/HDB3/CRC4 ClockSource

span=1,1,0,ccs,hdb3,crc4

termtype: te

bchan=1-15,17-31
dchan=16
#echocanceller=mg2,1-15,17-31

Span 2: WCT13x/1 “Wildcard TE131/TE133 Card 1” CCS/HDB3/CRC4 ClockSource

span=2,2,0,ccs,hdb3,crc4

termtype: te

bchan=32-46,48-62
dchan=47
#echocanceller=mg2,32-46,48-62

etc/asterisk/chan_dahdi.conf
;Automatically Generated chan_dahdi.conf configuration file
;Generator Version 0.3.1

[trunkgroups]

[channels]
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
relaxdtmf=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1

context=from-pstn
switchtype=national
signalling=pri_cpe
channel => 1-15, 17-31

context=from-pstn
switchtype=national
signalling=pri_cpe
channel => 32-46, 48-62

#include dahdi-channels.conf

etc/asterisk/dahdi-channels.conf
; Autogenerated by /usr/sbin/dahdi_genconf on Sat Jun 17 16:50:16 2017
; If you edit this file and execute /usr/sbin/dahdi_genconf again,
; your manual changes will be LOST.
; Dahdi Channels Configurations (chan_dahdi.conf)
;
; This is not intended to be a complete chan_dahdi.conf. Rather, it is intended
; to be #include-d by /etc/chan_dahdi.conf that will include the global settings
;

; Span 1: WCT13x/0 “Wildcard TE131/TE133 Card 0” (MASTER) CCS/HDB3/CRC4 ClockSou
rce
group=0,11
context=from-pstn
switchtype = euroisdn
signalling = pri_cpe
channel => 1-15,17-31
context = default
group = 63

; Span 2: WCT13x/1 “Wildcard TE131/TE133 Card 1” CCS/HDB3/CRC4 ClockSource
group=0,12
context=from-pstn
switchtype = euroisdn
signalling = pri_cpe
channel => 32-46,48-62
context = default
group = 63

phbyntel*CLI> dahdi show version
DAHDI Version: 2.11.1 Echo Canceller: HWEC

Appreciate your help!

2

For support on hardware cards, you need to go to the vendor or manufacturer. Digium have a support section on their web site for their current products. You will need the serial number of the card.

Also, when pasting to the forum, please use </> to mark it as preformatted text.

3

Yup.

Cheers

1 Like
4

Humm no sure, but it will help by providing more details as; what kind of noise, both party hear noise? wiring distances connection between pstn unit and digium card.
By the way you could try change clock mode, from master to slave, if asterisk configuration will set as pri_cpe should get and synchronise clock mode from pstn.

Sync/Clock Source
0 (internally clocked/providing timing to far end)
1 (primary receiver of timing from far end)
2 (secondary receiver of timing from far end)
3 …