[Asterisk-Users] "No D-channels available!"

[Ken D'Ambrosio]

Michael Collins wrote:

>Ken,
>
>The zaptel.conf looks good as far as I can tell.  The only question I
>have is on the Zapata.conf - do you know for sure that the switchtype is
>supposed to be national?  Just curious.  My telco's are all set for
>4ess/5ess or dms100.  
>  
>
Yah, it is national -- not that that kept me from trying everything else
for the hell of it.  (I tried, in order, national, ni1, 4ess and 5ess. 
None worked, but national -- which is what they told me the switch was,
to start with -- came by far the closest.)

>Second, can you do a "debug pri span 1" from the CLI and see what the
>output is?  I'm assuming that there's at least *some* communication on
>the D-channel since you're able to get inbound calls.  I'm just curious
>to know what's happening on the D channel when you are dialing out.
>  
>
I can't.  It was a one-shot deal, as (because of the phone company) I
can only get the T1 turned to ISDN during work hours, which means that
my company's lines are down while I'm trying to switch over.  I realized
about 1 minute after I told them to revert that I should have gotten a
"debug pri" dump, but it was too late.

-Ken

>-MC
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com
>[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ken
>D'Ambrosio
>Sent: Thursday, February 16, 2006 1:51 PM
>To: Asterisk Users Mailing List - Non-Commercial Discussion
>Cc: lullman at gmail.com
>Subject: [Asterisk-Users] "No D-channels available!"
>
>I just tried to go from CAS to PRI on my T1 (Sangoma), and failed pretty
>badly.  Seemingly everything worked -- Asterisk would see the incoming
>call (including CID and DID info), try to route it, and fail -- giving
>me a telco (not Asterisk) call failure message.  My zapata.conf and
>zaptel.conf files are at http://pastebin.com/558349
>
>Below's the log dump.
>
>Note that, because I was simply going from CAS to PRI, I don't believe
>the span definition line, itself, should have changed.
>
>If anyone has any ideas, I'd sure be interested...
>
>-- Accepting call from '1234567890' to '1630' on channel 0/1, span 1
>Enabled echo cancellation on channel 1
>-- Executing Goto("Zap/1-1", "internal|1630|1") in new stack
>-- Goto (internal,1630,1)
>-- Executing Dial("Zap/1-1", "SIP/1630|18") in new stack
>Setting NAT on RTP to 0
>Outgoing Call for 1630
>-- Called 1630
>(Provisional) Stopping retransmission (but retaining packet) on
>'523660ad4664b876746acaf235de5cc7 at 10.20.1.79' Request 102: Found
>-- SIP/1630-9ce0 is ringing
>Requested indication 3 on channel Zap/1-1
>!! Got reject for frame 0, retransmitting frame 0 now, updating n_r!
>!! Got reject for frame 0, retransmitting frame 1 now, updating n_r!
>Echo cancellation already on
>== Primary D-Channel on span 1 down
>No D-channels available!  Using Primary channel 24 as D-channel anyway!
>== Primary D-Channel on span 1 up
>update_call_counter(1630) - decrement call limit counter
>
>
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