Suddenly no audio in calls through TE120P

Hello,

We’ve had our Trixbox up and running for a few months now. Suddenly today, whenever calls are made through our TE120P card, there is no audio. Calls go through, but there is no ringing, no voice, nothing. Internal calls work ok, so it’s pointing to something with the T1 card. I’ve updated the drivers and reloaded Asterisk, but still no help.

Is this something common?

zapata.conf

;
; Zapata telephony interface
;
; Configuration file

[trunkgroups]

[channels]
group=1
signalling=pri_cpe
switchtype=national
context=from-zaptel
channel=1-23

language=en
rxwink=300		; Atlas seems to use long (250ms) winks
;
; Whether or not to do distinctive ring detection on FXO lines
;
;usedistinctiveringdetection=yes

usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=800
rxgain=0.0
txgain=0.0
callgroup=1
pickupgroup=1
immediate=no

;faxdetect=both
faxdetect=incoming
;faxdetect=outgoing
;faxdetect=no

;Include genzaptelconf configs
#include zapata-auto.conf

;Include AMP configs
#include zapata_additional.conf

zaptel.conf

# Autogenerated by /usr/local/sbin/genzaptelconf -- do not hand edit
# Zaptel Configuration File
#
# This file is parsed by the Zaptel Configurator, ztcfg
#

# It must be in the module loading order

span=1,1,0,esf,b8zs
bchan=1-23
dchan=24

# Global data

loadzone	= us
defaultzone	= us

No one has touched the server and this problem seems to be out of the blue.

Any ideas?

Thanks,

Dan