I’ve just started working with FreePBX and Asterisk, so I am a bit green. I’ll try to provide as much info as possible.
My servers are Ubuntu based with the special proviso that I am using LXC to isolate my services onto separate servers and provide me with portability and redundancy. LXC for those who are unfamiliar is:
LXC (LinuX Containers) is an operating system–level virtualization method for running multiple isolated Linux systems (containers) on a single control host. The Linux kernel comprises cgroups for resource isolation (CPU, memory, block I/O, network, etc.) that does not require starting any virtual machines.
Everything is working fine except for DAHDi. There are specific instructions for using DAHDi cards in LXC which I have followed, but essentially DAHDi is installed on both the host and the container and /dev/dahdi is mapped from host to container. I am not the first to do this, and others have had success.
The dahdi service is running on the container. service dahdi status shows
### Span 1: WCTDM/0 "Wildcard AEX410" (MASTER) 1 FXO FXSKS (EC: MG2 - INACTIVE) 2 FXO FXSKS (EC: MG2 - INACTIVE) 3 FXO FXSKS (EC: MG2 - INACTIVE) RED 4 FXO FXSKS (EC: MG2 - INACTIVE) RED
/dev/dahdi is present and owned by asterisk user:
lrwxrwxrwx 1 asterisk asterisk 12 Jul 10 14:06 1 -> chan/001/001 lrwxrwxrwx 1 asterisk asterisk 12 Jul 10 14:06 2 -> chan/001/002 lrwxrwxrwx 1 asterisk asterisk 12 Jul 10 14:06 3 -> chan/001/003 lrwxrwxrwx 1 asterisk asterisk 12 Jul 10 14:06 4 -> chan/001/004 drwxr-xr-x 3 asterisk asterisk 4096 Jun 25 18:00 chan crw-rw---- 1 asterisk asterisk 196, 254 Jul 10 14:06 channel crw-rw---- 1 asterisk asterisk 196, 0 Jul 10 14:06 ctl drwxr-xr-x 2 asterisk asterisk 4096 Jul 10 14:06 devices crw-rw---- 1 asterisk asterisk 196, 255 Jul 10 14:06 pseudo crw-rw---- 1 asterisk asterisk 196, 253 Jul 10 14:06 timer crw-rw---- 1 asterisk asterisk 196, 250 Jul 10 14:06 transcode
pci:0000:0e:08.0 wctdm24xxp+ d161:8006 Wildcard AEX410P
 active=yes alarms=OK description=Wildcard AEX410 name=WCTDM/0 manufacturer=Digium devicetype=Wildcard AEX410 location=PCI Express Bus 14 Slot 09 basechan=1 totchans=4 irq=0 type=analog port=1,FXO port=2,FXO port=3,FXO port=4,FXO
So far it looks like what I’ve read it’s supposed to, however, when I try dahdi_cfg -vvvvv
DAHDI Tools Version - 2.9.1 DAHDI Version: 18.104.22.168 Echo Canceller(s): MG2 Configuration ====================== Channel map: Channel 01: FXS Kewlstart (Default) (Echo Canceler: oslec) (Slaves: 01) Channel 02: FXS Kewlstart (Default) (Echo Canceler: oslec) (Slaves: 02) Channel 03: FXS Kewlstart (Default) (Echo Canceler: oslec) (Slaves: 03) Channel 04: FXS Kewlstart (Default) (Echo Canceler: oslec) (Slaves: 04) 4 channels to configure. Setting echocan for channel 1 to oslec DAHDI_ATTACH_ECHOCAN failed on channel 1: Invalid argument (22)
The FreePBX DAHDI Config page shows Analog Hardware
Type Ports Action FXO Ports 1,2,3,4 Edit FXS Ports --
but there is a big warning at the top: DAHDi Doesn’t appear to be running. Click the ‘Restart/Reload Dahdi Button’ Below. Restart/Reload doesn’t remedy it.
I’ve tried executing ‘dahdi show status’ but get No such command ‘dahdi show status’ (type ‘core show help dahdi show’ for other possible commands). The Asterisk full report shows the same.
I’ve been reading other forums on DAHDi and possible solutions, but many involve changing config files and most have very clear headers stating to use the FreePBX web to configure and not to edit the files.
Can anyone point me in the right direction? My PBX is working well otherwise and I really would like to keep it on an LXC.