Posted: Mon Feb 11, 2008 8:12 am Post subject: [Bristuff-users] "Cause 34" on free channel
Hello,
I have a problem with my bristuffed Asterisk boxes on Asterisk 1.2.
Sometimes I get:
"app_dial.c:1096 dial_exec_full: Unable to create channel of type
'ZAP' (cause 34 - Circuit/channel congestion)"
So I can't dial out on one port of a 4-Port ISDN card. The strange
issue is I get incoming calls just fine. So I can't dial out, but can
get incoming calls. After an incoming call mostly I can dial out on
that channel again. So it seems the incoming call resets the status of
the channel. On another port of the 4-port card I can do calls. But it
isn't port-independent. I switched the ports and the "cause 34"
happened again.
On a "pri debug span x" there is nothing on the ISDN channel. So it
seems Asterisk has a internal status "channel in use" which is wrong.
A "zap reset span x" doesn't help. I have to restart Asterisk.
Posted: Wed Feb 20, 2008 8:23 pm Post subject: [Bristuff-users] "Cause 34" on free channel
Hello,
Some updates to my issue. In the case I can't dial out a "zap show
channel xx" shows some confusing things. First there is a Caller ID.
Normally there is no Callerid if the channel is not in use.
Second "PRI flags" shows "Call" (this is normally blank if the channel
is not in use). So it seems to me Asterisk did not hang up the last
call correctly. Any variable tells Asterisk the channel is in use and
so it is not available to make a new call. As I wrote before I can
dial in on that channel(s), but not dial out. After a restart it works
again and I can dial out.
So it's pretty clear there is a Asterisk problem. Is anyone out there
with some more information or deeper Asterisk knowledge? Tzafrir?
I will try to have a look to chan_zap tomorrow.
Regards,
Gunnar Schaller
*CLI> zap show channel 10
Channel: 10
File Descriptor: 29
Span: 4
Extension:
Dialing: no
Context: extern-if03
Caller ID: 0441234567
Calling TON: 1
Caller ID name:
Destroy: 0
InAlarm: 0
Signalling Type: PRI Signalling
Radio: 0
Owner: <None>
Real: <None>
Callwait: <None>
Threeway: <None>
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: no
Relax DTMF: no
Dialing/CallwaitCAS: 0/0
Default law: alaw
Fax Handled: no
Pulse phone: no
Echo Cancellation: 128 taps unless TDM bridged, currently OFF
PRI Flags: Call
PRI Logical Span: Implicit
Hookstate (FXS only): Onhook
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