"core show channels"

Asterisk Asterisk Support
1

Hi,

I was trying to configure x100p @my home and I installed dahdi-1.4.2 and asterisk-1.8.4. After installation, loading modules and starting asterisk, when I give the command, core show channels, it isn’t showing anything.’

[quote]*CLI> core show channels
Channel Location State Application(Data)
0 active channels
0 active calls
0 calls processed[/quote]

[quote]etch:/etc/asterisk# lsdahdi

Span 1: WCFXO/0 “Wildcard X100P Board 1” (MASTER)

1 FXO FXSKS (battery)
[/quote]

[quote]etch:/etc/asterisk# dahdi_scan
[1]
active=yes
alarms=OK
description=Wildcard X100P Board 1
name=WCFXO/0
manufacturer=Digium
devicetype=Wildcard X100P
location=PCI Bus 04 Slot 02
basechan=1
totchans=1
irq=169
type=analog
port=1,FXO
etch:/etc/asterisk# cat …/dahdi/system.conf
loadzone=in
defaultzone=in
fxsks=1
channels=1
echocanceller=mg2,1
[/quote]

[quote]
etch:/etc/asterisk# dahdi_cfg -vvvvvvvvvvvvvv
DAHDI Tools Version - 2.4.1

DAHDI Version: 2.4.1.2
Echo Canceller(s): MG2
Configuration

Channel map:

Channel 01: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 01)

1 channels to configure.

Setting echocan for channel 1 to mg2[/quote]
It is atleast supposed to show me a pseudo channel correct? I don’t know if my understanding on this topic is correct. Here is my system.conf and chan_dahdi.conf files,

etch:/etc/asterisk# cat ../dahdi/system.conf
loadzone=in
defaultzone=in
fxsks=1
channels=1
echocanceller=mg2,1

[code]
[trunkgroups]

[channels]
context=default
rxwink=300 ; Atlas seems to use long (250ms) winks
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
rxgain=1.0
txgain=1.0

group=1
callgroup=1
pickupgroup=1
immediate=no
hanguponpolarityswitch=yes
answeronpolarityswitch=yes
busydetect=no
busycount=4
callprogress=no
progzone=in
context=default
signalling=fxs_ks
channel => 1[/code]

2

Asterisk uses channels with more than one meaning. core show channels does not show dahdi channels unless they have a call on them (it doesn’t really show them at all, but an incoming or outgoing call one one causes the creation of a channel of the type that core show channels shows). For things like SIP, the distinction is rather more obvious.

3

The issue got fixed. The busydetect was set to ‘no’. Toggled, and got fixed.

Regards,
Kurian Thayil.

4

david55, you are right… but in dahdi show channels, we see pseudo channel. what is a pseudo channel?? And why is it shown whenever the channel is not used??