[asterisk-users] Unable to create channel of type 'DAHDI' (cause 0 - Unknown)

[Jim Duda]

Inbound calls on DAHDI work fine.

At some point, outbound starts working.  I just cannot figure out what
the trigger is.  At first, I thought the trigger was receiving at least
one inbound call.  But that isn't always true.  Once it starts working,
it seems to continue until a restart.

Everything looks normal.  I'm having trouble with outbound calls
on channel 4 (attached to the PSTN).

asterisk*CLI> dahdi show channels
    Chan Extension  Context         Language   MOH Interpret 
Blocked    State
  pseudo            internal                   default 
        In Service
       1            internal                   default 
        In Service
       4            incoming                   default 
        In Service
asterisk*CLI> dahdi show channel 4
Channel: 4LI>
File Descriptor: 21
Span: 1
Extension:
Dialing: no
Context: incoming
Caller ID:
Calling TON: 0
Caller ID name:
Mailbox: 100
Destroy: 0
InAlarm: 0
Signalling Type: FXS Kewlstart
Radio: 0
Owner: <None>
Real: <None>
Callwait: <None>
Threeway: <None>
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: no
Busy Detection: no
TDD: no
Relax DTMF: no
Dialing/CallwaitCAS: 0/0
Default law: ulaw
Fax Handled: no
Pulse phone: no
DND: no
Echo Cancellation:
         128 taps
         (unless TDM bridged) currently OFF
Actual Confinfo: Num/0, Mode/0x0000
Actual Confmute: No
Hookstate (FXS only): Onhook

Jim

Kevin P. Fleming wrote:
> Brendan Martens wrote:
>> The reason for this is that 1.6.0 does not support dahdi. It was a  
>> mistake when it was listed as an included feature. The documentation  
>> for it has been removed in 1.6.0.1. If you need dahdi you need to go  
>> to 1.6.1.
> 
> That is incorrect. There was one small feature (the 'dahdichan'
> configuration option, used when creating a new-style chan_dahdi.conf
> instead of the format used by zapata.conf) that was mistakenly included
> in the sample config file in 1.6.0, which has how been removed in
> 1.6.0.1. The dahdichan config option is supported in 1.6.1.
> 
> 1.6.0 fully supports DAHDI, and does not support Zaptel at all.
>