[kc7gr]

Fellow techies,

I'm fairly new to Asterisk, and am having trouble with making outbound calls to my channel bank. For whatever reason, it appears that dahdi is creating only its pseudo channel and not recognizing the presence of my FXS and FXO cards.

THE SETUP: Asterisk 1.4, dahdi 2.2.1, CentOS 5.4 on a Compaq DL580 G2 server. Sangoma A101 T1 card, Adtran 750 channel bank, channels 1-4 are hardware FXO, channels 5-16 are hardware FXS, channels 17-24 are unused at this time.

WHAT SHOWS UP: When I'm at the Asterisk CLI, and I attempt to place a call to the extension which should go to the first FXS port (dahdi channel 5), this is what I get.

-- Executing [1237@default:1] Dial("SIP/7446-00000005", "DAHDI/5") in new stack
[Mar 10 21:53:42] WARNING[3040]: app_dial.c:1296 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 0 - Unknown)
== Everyone is busy/congested at this time (1:0/0/1)

This is from /etc/asterisk/chan_dahdi.conf

;autogenerated by /usr/sbin/wancfg_dahdi do not hand edit
;autogenrated on 2010-03-08
;Dahdi Channels Configurations
;For detailed Dahdi options, view /etc/asterisk/chan_dahdi.conf.bak

[trunkgroups]

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

;Sangoma A101 port 1 [slot:2 bus:10 span:1] <wanpipe1>
[house]
context=9555
group=1
echocancel=yes
signalling=fxs_ks
dahdichan => 1

[bft]
context=2996
group=2
echocancel=yes
signalling=fxs_ks
dahdichan => 2

[fxstest]
context=6722
group=3
echocancel=yes
signalling=fxo_ks
dahdichan => 5

And this is the relevant section from extensions.conf.

exten => 1237,1,Dial(DAHDI/5) ; Channel bank FXS test slot
exten => 1237,n,Voicemail(1234,b)

So -- What am I doing wrong? I have a feeling this is going to turn out to be one of those 'Doh!' moments that'll be painfully obvious, once pointed out.

Thanks much.