Problem with FXO / dahdi channel

Asterisk Asterisk Support
1

hi folks, my Asterisk server has two AEX410 cards, the first one works fine (all 4 ports) but the second one has port #2 turned off. I need to say that this Asterisk was inherited, so the person before me was who installed and configured. When I did check config., the lines referring to that channel were commented in /etc/dahdi/system.conf, chan_dahdi.conf and dahdi-chanels.conf files, so I uncommented. At the end I issued CLI>reload chan_dahdi.so but when I check dahdi channels in CLI, it still doesn’t shows up:

CLI> dahdi show channels
Chan Extension Context Language MOH Interpret Blocked State
pseudo default default In Service
1 bestel default In Service
2 bestel default In Service
3 bestel default In Service
4 bestel default In Service
5 bestel default In Service
6 bestel default In Service
7 bestel default In Service
8 bestel default In Service
9 bestel default In Service
10 bestel default In Service
11 bestel default In Service
12 bestel default In Service
13 bestel default In Service
14 bestel default In Service
15 bestel default In Service
17 bestel default In Service
18 bestel default In Service
19 bestel default In Service
20 bestel default In Service
21 8040 bestel default In Service
22 bestel default In Service
23 4400 bestel default In Service
24 bestel default In Service
25 bestel default In Service
26 bestel default In Service
27 bestel default In Service
28 bestel default In Service
29 bestel default In Service
30 bestel default In Service
31 bestel default In Service
32 lineone default In Service
33 linetwo default In Service
34 linethree default In Service
35 linefour default In Service
37 linesix default In Service
38 lineseven default In Service
39 lineeight default In Service

channel in question is #36…can anybody help me please to find out what’s happening ??? am I missing something here ??
thanks.

2

Support for hardware cards need to be obtained from the vendor. Although Digium fund this forum, they do not provide commercial support through it.

3

I understand that you mention the vendor thinking in a hardware problem, but I’m looking for help in here with the configuration…maybe I need to look in some other file else to enable that channel…???
thanks.

4

Did you reload also DAHDI service from linux shell? Also try in the linux shell the command to check which channels are configured:

lsdahdi

1 Like
5

thanks for your answer @navaismo, I did what you suggested and the result is this:

[root@aster gaspar]# lsdahdi

Span 1: WCT1/0 “Wildcard TE121 Card 0” (MASTER) HDB3 ClockSource

1 PRI CAS (In use) (EC: VPMOCT032 - ACTIVE)
2 PRI CAS (In use) (EC: VPMOCT032 - ACTIVE)
3 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
4 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
5 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
6 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
7 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
8 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
9 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
10 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
11 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
12 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
13 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
14 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
15 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
16 PRI Reserved
17 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
18 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
19 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
20 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
21 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
22 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
23 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
24 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
25 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
26 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
27 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
28 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
29 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
30 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)
31 PRI CAS (In use) (EC: VPMOCT032 - INACTIVE)

Span 2: WCTDM/0 “Wildcard AEX410”

32 FXO FXSKS (In use) (EC: VPMOCT032 - INACTIVE)
33 FXO FXSKS (In use) (EC: VPMOCT032 - INACTIVE)
34 FXO FXSKS (In use) (EC: VPMOCT032 - INACTIVE)
35 FXO FXSKS (In use) (EC: VPMOCT032 - INACTIVE)

Span 3: WCTDM/1 “Wildcard AEX410”

36 unknown Reserved
37 FXO FXSKS (In use) (EC: MG2 - INACTIVE)
38 FXO FXSKS (In use) (EC: MG2 - INACTIVE) RED
39 FXO FXSKS (In use) (EC: MG2 - INACTIVE) RED
[root@aster gaspar]#

note that channel 36 is unknown…, beyond that, I don’t know how to read that output. Besides, I also reloaded the service and the result was:

[root@aster init.d]# service dahdi reload
Rerunning dahdi_cfg: DAHDI_CHANCONFIG failed on channel 36: Invalid argument (22)
Selected signaling not supported
Possible causes:
FXS signaling is being used on a FXS interface (use a FXO signaling variant)
RBS signaling is being used on a E1 CCS span
Signaling is being assigned to channel 16 of an E1 CAS span
[FALLĂ“]
[root@aster init.d]#

any ideas ???

thanks.

6

How is configured under the system.conf

7

Span 1: WCT1/0 “Wildcard TE121 Card 0”

span=1,1,0,cas,hdb3

termtype: te

cas=1-15:1101
cas=17-31:1101
#dchan=16
echocanceller=mg2,1-15,17-31

Span 2: WCTDM/0 “Wildcard AEX410”

fxsks=32
echocanceller=mg2,32
fxsks=33
echocanceller=mg2,33
fxsks=34
echocanceller=mg2,34
fxsks=35
echocanceller=mg2,35

Span 3: WCTDM/1 “Wildcard AEX410” (MASTER)

fxsks=36
echocanceller=mg2,36
fxsks=37
echocanceller=mg2,37
fxsks=38
echocanceller=mg2,38
fxsks=39
echocanceller=mg2,39

Global data

loadzone = mx
defaultzone = mx

fxsks=36 and echocanceller lines were commented, I uncommented both, but channel remains unknown…

thanks.

8

backup all your config files. Then run dahdi_scan -vvvvv and paste the output could be that the port is not a FXO or somehow is damaged. But first run the dahdi_scan command.

9

sorry for the late replay my friend, here’s the output:

[root@aster asterisk]# dahdi_scan -vvvvv
[1]
active=yes
alarms=OK
description=Wildcard TE121 Card 0
name=WCT1/0
manufacturer=Digium
devicetype=Wildcard TE121 (VPMOCT032)
location=PCI Bus 05 Slot 09
basechan=1
totchans=31
irq=0
type=digital-E1
syncsrc=1
lbo=0 db (CSU)/0-133 feet (DSX-1)
coding_opts=AMI,HDB3
framing_opts=CCS,CRC4
coding=HDB3
framing=CAS
[2]
active=yes
alarms=OK
description=Wildcard AEX410
name=WCTDM/0
manufacturer=Digium
devicetype=Wildcard AEX410 (VPMOCT032)
location=PCI Express Bus 09 Slot 09
basechan=32
totchans=4
irq=0
type=analog
port=32,FXO
port=33,FXO
port=34,FXO
port=35,FXO
[3]
active=yes
alarms=OK
description=Wildcard AEX410
name=WCTDM/1
manufacturer=Digium
devicetype=Wildcard AEX410
location=PCI Express Bus 11 Slot 09
basechan=36
totchans=4
irq=0
type=analog
port=36,none
port=37,FXO
port=38,FXO
port=39,FXO

thanks!

10

Seems like there is no module installed in that Card or the module is damaged or the port is damaged. Check the card by opening the server, if there is a module try swapping with the next one and check.

11

ok I’ll try that, but first I wanted to check if could it be a configuration problem…

Thanks a lot!!

12

quick question: server still has an empty pci slot, can I add another pci card with 8 FXO ports ??? I mean, is there any limit for FXO ports in Asterisk ???

thanks.

13

You can add as many cards as will fit in your server.

14

Excellent!!

thanks my friend.