I had setup two asterisk servers, connected via PRI.
Works all fine except for one problem…a strange noise like a “pr prrrr pt pt pt”.
Those are the configuration files
PRI_CPE_SERVER
/etc/dahdi/system.conf
# Span 5: WCTDM/4 "Wildcard TDM400P REV E/F Board 5"
fxoks=13
echocanceller=mg2,13
fxoks=14
echocanceller=mg2,14
# channel 15, WCTDM/4/2, no module.
fxsks=16
echocanceller=mg2,16
# Span 6: WCT1/0 "Digium Wildcard TE110P T1/E1 Card 0" (MASTER) CCS/HDB3/CRC4
span=6,1,0,ccs,hdb3,crc4
# termtype: te
bchan=17-31,33-47
dchan=32
echocanceller=mg2,17-31,33-47
# Global data
loadzone = it
defaultzone = it
/etc/asterisk/chan_dahdi.conf
[trunkgroups]
[channels]
language=it
context=local
switchtype=euroisdn
signalling=pri_cpe
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=no
canpark=yes
cancallforward=yes
callreturn=yes
context=local
echocancel=yes
channel => 1-15,17-31
echocancelwhenbridged=yes
group=1
callgroup=1
pickupgroup=1
immediate=no
#include /etc/asterisk/dahdi-channels.conf
/etc/asterisk/dahdi-channels.conf
; Span 5: WCTDM/4 "Wildcard TDM400P REV E/F Board 5"
;;; line="13 WCTDM/4/0 FXOKS (EC: MG2 - INACTIVE)"
signalling=fxo_ks
callerid="Channel 13" <4013>
mailbox=4013
group=0,11
context=from-internal
channel => 13
;;; line="14 WCTDM/4/1 FXOKS (EC: MG2 - INACTIVE)"
signalling=fxo_ks
callerid="Channel 14" <4014>
mailbox=4014
group=0,12
context=from-internal
channel => 14
;;; line="16 WCTDM/4/3 FXSKS (EC: MG2 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=0,13
context=from-dahdi
channel => 16
; Span 6: WCT1/0 "Digium Wildcard TE110P T1/E1 Card 0" (MASTER) CCS/HDB3/CRC4
group=0,14
context=from-dahdi
switchtype = euroisdn
signalling = pri_cpe
channel => 17-31,33-47
/etc/dahdi/assigned_spans.conf
# Device: [] @PCI_Bus_05_Slot_06 /sys/devices/pci0000:00/0000:00:14.4/0000:05:05.0/pci:0000:05:05.0
/sys/devices/pci0000:00/0000:00:14.4/0000:05:05.0/pci:0000:05:05.0 1:6:17
# Device: [] @PCI_Bus_05_Slot_07 /sys/devices/pci0000:00/0000:00:14.4/0000:05:06.0/pci:0000:05:06.0
/sys/devices/pci0000:00/0000:00:14.4/0000:05:06.0/pci:0000:05:06.0 1:5:13
The configuration on PRI_NET SIDE is identical except for pri_cpe which became pri_net and /etc/dadhi/system.conf where the span use is own timing source.
The calls works fine, I have tried analogic-sip, sip-to-sip, etc…
but as I said there is very annoying noise in the background, here you can hear.
dahdi_tool doesn’t report nothing bad and also console doesn’t report nothing bad.
I have tried those solution:
chancing pci slot NO
remove analogic card NO
use another pri crossover cable NO
check irq and put the card in a way that will not share irq with other…NO
This is the sound, what can it be? Thanks
Select one of this (i made one mirror)