E1 Unable to create channel

Asterisk Asterisk Support
1

Hello everybody,

I am looking for some help, about my settings, in order to make my E1 line fonctionnal. I’m trying first to do an outbound call.
I got a 2.6.18-308.1.1.el5.centos.plus 86_64 (CentOs 5.7) , Asterisk 1.8.10.1 and DAHDI Version: 2.6.0 Echo Canceller: HWEC

this is my error :

Unable to create channel of type 'Dahdi' (cause 0 - Unknown)
  == Everyone is busy/congested at this time (1:0/0/1)

this is my auto-generated /etc/asterisk/dahdi-channels.conf (I don’t have chan_dahdi.conf in my system) :

; Span 1: WCT1/0 "Wildcard TE121 Card 0" (MASTER) HDB3/CCS/CRC4 ClockSource group=0,11 context=from-pstn switchtype = euroisdn signalling = pri_cpe channel => 1-15,17-31 context = default group = 63

This is my system.conf

# Span 1: WCT1/0 "Wildcard TE121 Card 0" (MASTER) HDB3/CCS/CRC4 ClockSource 
span=1,1,0,ccs,hdb3,crc4
# termtype: te
bchan=1-15,17-31
dchan=16
echocanceller=mg2,1-15,17-31

# Global data

loadzone	= us
defaultzone	= us

CLI

CLI> dahdi show channels Chan Extension Context Language MOH Interpret Blocked State pseudo default default In Service

Lsdahdi

[code]lsdahdi

Span 1: WCT1/0 “Wildcard TE121 Card 0” (MASTER) HDB3/CCS/CRC4 ClockSource

1 PRI Clear (EC: VPMADT032 - INACTIVE)
2 PRI Clear (EC: VPMADT032 - INACTIVE)
3 PRI Clear (EC: VPMADT032 - INACTIVE)
4 PRI Clear (EC: VPMADT032 - INACTIVE)
5 PRI Clear (EC: VPMADT032 - INACTIVE)
6 PRI Clear (EC: VPMADT032 - INACTIVE)
7 PRI Clear (EC: VPMADT032 - INACTIVE)
8 PRI Clear (EC: VPMADT032 - INACTIVE)
9 PRI Clear (EC: VPMADT032 - INACTIVE)
10 PRI Clear (EC: VPMADT032 - INACTIVE)
11 PRI Clear (EC: VPMADT032 - INACTIVE)
12 PRI Clear (EC: VPMADT032 - INACTIVE)
13 PRI Clear (EC: VPMADT032 - INACTIVE)
14 PRI Clear (EC: VPMADT032 - INACTIVE)
15 PRI Clear (EC: VPMADT032 - INACTIVE)
16 PRI HDLCFCS (EC: VPMADT032 - INACTIVE)
17 PRI Clear (EC: VPMADT032 - INACTIVE)
18 PRI Clear (EC: VPMADT032 - INACTIVE)
19 PRI Clear (EC: VPMADT032 - INACTIVE)
20 PRI Clear (EC: VPMADT032 - INACTIVE)
21 PRI Clear (EC: VPMADT032 - INACTIVE)
22 PRI Clear (EC: VPMADT032 - INACTIVE)
23 PRI Clear (EC: VPMADT032 - INACTIVE)
24 PRI Clear (EC: VPMADT032 - INACTIVE)
25 PRI Clear (EC: VPMADT032 - INACTIVE)
26 PRI Clear (EC: VPMADT032 - INACTIVE)
27 PRI Clear (EC: VPMADT032 - INACTIVE)
28 PRI Clear (EC: VPMADT032 - INACTIVE)
29 PRI Clear (EC: VPMADT032 - INACTIVE)
30 PRI Clear (EC: VPMADT032 - INACTIVE)
31 PRI Clear (EC: VPMADT032 - INACTIVE)
[/code]

Is someone has any ideas ? How to activate thos channels ?

Best regards

2

you should have chan_dahdi.conf file and include dahdi-channels.conf in it .maybe you dont have install dadhi correctly or you omit it . your dahdi-channels.conf configurations are not read by asterisk because it is not included in chan_dahdi.conf .

( dahdi show channels commnad in asterisk console will show you E1 channels with the context if you include dahdi-channels.conf in chan_dahdi.conf )

3

Hello,

For support with Digium telephony cards, please contact Digium’s Support department directly. See:

viewtopic.php?f=1&t=81808

4

Hello again, and thanks for your quick replies.

I re-installed dahdi, and still no this file, so I created by hand chan_dahdi, reloqd everything, and I succeed to do my outbound and my inbound calls.

I don’t have so much time to work on the question : why dahdi didn’t auto created this file (chan_dahdi.conf), but for sure, it will be one of my futur task.

Thank you guys,

Mikaveli

5

DAHDI installation doesn’t create that file, that file is part of Asterisk’s chan_dahdi interface that gets installed when “make samples” is run during an Asterisk installation, if Asterisk was compiled with chan_dahdi support - depends on DAHDI having been already installed.