3
votes

I installed dahdi 2.7 and asterisk 11 on Ubuntu 12.04.2 LTS. I'm having a hard time configuring a DAHDI channel. I have a AEX 808 card from Digium, the one with 8 FXO ports by my phone line is plugged into port 1 of the card.

I followed the exact same steps in http://www.voip-info.org/wiki/view/DAHDI under the Sample Installation section except I edited dahdi_channels.conf to point to the same group number as the channel number for channels 2-8 as I thought asterisk was trying to make a call from a channel other than channel 1 since they were all previously in group=0.

Here are my config files:

chan_dahdi.conf:

[trunkgroups]

; No trunk groups are needed in this configuration.

[channels]
#include /etc/asterisk/dahdi-channels.conf
; The channels context is used when defining channels using the
; older deprecated method.  Don't use this as a section name.

;[phone](!)
;
; A template to hold common options for all phones.
;
usecallerid = yes
hidecallerid = no
callwaiting = no
;threewaycalling = yes
transfer = yes
echocancel = yes
echotraining = yes
immediate = no

dahdi_channels.conf:

; Autogenerated by /usr/sbin/dahdi_genconf on Thu Aug  8 15:55:40 2013
; 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: WCTDM/0 "Wildcard AEX800" (MASTER) 
;;; line="1 WCTDM/0/0 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel => 1
callerid=
group=
context=default

;;; line="2 WCTDM/0/1 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=2
context=from-pstn
channel => 2
callerid=
group=
context=default

;;; line="3 WCTDM/0/2 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=3
context=from-pstn
channel => 3
callerid=
group=
context=default

;;; line="4 WCTDM/0/3 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=4
context=from-pstn
channel => 4
callerid=
group=
context=default

;;; line="5 WCTDM/0/4 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=5
context=from-pstn
channel => 5
callerid=
group=
context=default

;;; line="6 WCTDM/0/5 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=6
context=from-pstn
channel => 6
callerid=
group=
context=default

;;; line="7 WCTDM/0/6 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=7
context=from-pstn
channel => 7
callerid=
group=
context=default

;;; line="8 WCTDM/0/7 FXSKS  (In use) (EC: VPMOCT032 - INACTIVE)"
signalling=fxs_ks
callerid=asreceived
group=8
context=from-pstn
channel => 8
callerid=
group=
context=default

/etc/dahdi/system.conf:

# Autogenerated by /usr/sbin/dahdi_genconf on Thu Aug  8 15:55:40 2013
# If you edit this file and execute /usr/sbin/dahdi_genconf again,
# your manual changes will be LOST.
# Dahdi Configuration File
#
# This file is parsed by the Dahdi Configurator, dahdi_cfg
#
# Span 1: WCTDM/0 "Wildcard AEX800" (MASTER) 
fxsks=1
echocanceller=mg2,1
fxsks=2
echocanceller=mg2,2
fxsks=3
echocanceller=mg2,3
fxsks=4
echocanceller=mg2,4
fxsks=5
echocanceller=mg2,5
fxsks=6
echocanceller=mg2,6
fxsks=7
echocanceller=mg2,7
fxsks=8
echocanceller=mg2,8

With these config files, when I start asterisk, I get the following DAHDI related errors:

[Aug  8 15:56:26] WARNING[25198] chan_dahdi.c: Unable to specify channel 1: Device or resource busy
[Aug  8 15:56:26] ERROR[25198] chan_dahdi.c: Unable to open channel 1: Device or resource busy
[Aug  8 15:56:26] ERROR[25198] chan_dahdi.c: Unable to register channel '1'

This is the result of lsdahdi from the unix terminal:

### Span  1: WCTDM/0 "Wildcard AEX800" (MASTER) 
  1 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  
  2 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  3 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  4 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  5 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  6 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  7 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED
  8 FXO        FXSKS       (In use) (EC: VPMOCT032 - INACTIVE)  RED

I'm not sure why it says "In use" as there are no calls currently being processed. I'm not sure if this is the default output for an AEX808 card. How can I get my DAHDI working with asterisk? What am I doing wrong?

Result of dahdi show status in asterisk:

 astersik*CLI> dahdi show status
 No such command 'dahdi show status' (type 'core show help dahdi show' for other possible commands)

Output of dahdi_cfg -vvvv:

DAHDI Tools Version - 2.7.0-rc1

DAHDI Version: 2.7.0-rc1
Echo Canceller(s): HWEC
Configuration
======================


Channel map:

Channel 01: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 01)
Channel 02: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 02)
Channel 03: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 03)
Channel 04: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 04)
Channel 05: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 05)
Channel 06: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 06)
Channel 07: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 07)
Channel 08: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 08)

8 channels to configure.

Setting echocan for channel 1 to mg2
Setting echocan for channel 2 to mg2
Setting echocan for channel 3 to mg2
Setting echocan for channel 4 to mg2
Setting echocan for channel 5 to mg2
Setting echocan for channel 6 to mg2
Setting echocan for channel 7 to mg2
Setting echocan for channel 8 to mg2

Any help would be appreciated.

Thanks in advance!

2
What is the output of dahdi show status in asterisk ?Skaard-Solo
@Skaard-Solo please check my edits.Sapphire
Well, it seems that dahdi is not installed correctly in Asterisk :/ but you can check this link :forums.asterisk.org/viewtopic.php?f=1&t=84728Skaard-Solo

2 Answers

1
votes

Check output of:

dahdi_cfg -vvvvv
1
votes

After much investigation, I realized that DAHDI wasn't installed properly. I removed DAHDI and asterisk from the system and reinstalled everything to make it work.