[Asterisk-Users] isdn channels busy

[Asterisk]

Holy Cow. :)

Is there a patch for this ? Has a bug report been raised ? I couldn't 
find any ....

Is there any work around for this until the bug is fixed ? Is it the 
"Restarting Channels" that is aggravating the situation - I think that 
there is an option to specify the restart timeout. I do restart asterisk 
every night, so would it be possible to disable the restart of the B 
channels.

Sorry for soooo many questions, but this is a real "bum-biter" !!

Julian.


Klaus-Peter Junghanns wrote:

>Hi,
>
>that is a bug in libpri. You will sometimes notice a message like:
>
>!! No channel map, no channel, and no ds1?  What am I supposed to
>identify?
>
>This is caused by a restart message from the switch containing no
>channel ident IE. According to the ETSI standard this indicates a
>restart of all B channels on that span. Libpri just ignores this
>message. Now all B channels are "blocked" for incoming calls.
>You can free them by making outgoing calls.
>
>Fixed in BRIstuff since May. ;)
>
>best regards
>
>Klaus
>--
>Klaus-Peter Junghanns
>
>Am Samstag, den 25.06.2005, 13:47 +0100 schrieb Asterisk:
>  
>
>>We've got a EuroISDN (32 channels) with a TE405p, running cvs head as of 
>>5 days ago.
>>
>>In the past couple of days, we've hit a scenario where incoming calls to 
>>the * pbx from the PSTN are being marked as busy, but outgoing calls 
>>work just fine. When we reboot *, the problem goes away. Has anyone else 
>>had this ? I've attached a PRI debug below. I've changed the phone 
>>numbers (x & y) to protect the innocent :)
>>
>>Please tell me that there is someone who has had this issue, and knows 
>>how to get round it. It's making my users, well, irate ...
>>
>>Many thanks.
>>
>>Julian
>>
>>pbx*CLI>
>>[Span 2 D-Channel 0]< Protocol Discriminator: Q.931 (8)  len=43
>>[Span 2 D-Channel 0]< Call Ref: len= 2 (reference 1/0x1) (Originator)
>>[Span 2 D-Channel 0]< Message type: SETUP (5)
>>< [a1]
>>[Span 2 D-Channel 0]< Sending Complete (len= 1)
>>< [04 03 90 90 a3]
>>[Span 2 D-Channel 0]< Bearer Capability (len= 5) [ Ext: 1  Q.931 Std: 0 
>>  Info transfer capability: 3.1kHz audio (16)
>>[Span 2 D-Channel 0]<                              Ext: 1  Trans 
>>mode/rate: 64kbps, circuit-mode (16)
>>[Span 2 D-Channel 0]<                              Ext: 1  User 
>>information layer 1: A-Law (35)
>>< [18 03 a9 83 81]
>>[Span 2 D-Channel 0]< Channel ID (len= 5) [ Ext: 1  IntID: Implicit, PRI 
>>Spare: 0, Exclusive Dchan: 0
>>[Span 2 D-Channel 0]<                        ChanSel: Reserved
>>[Span 2 D-Channel 0]<                       Ext: 1  Coding: 0   Number 
>>Specified   Channel Type: 3
>>[Span 2 D-Channel 0]<                       Ext: 1  Channel: 1 ]
>>< [1e 02 84 83]
>>[Span 2 D-Channel 0]< Progress Indicator (len= 4) [ Ext: 1  Coding: 
>>CCITT (ITU) standard (0) 0: 0   Location: Public network serving the 
>>remote user (4)
>>[Span 2 D-Channel 0]<                               Ext: 1  Progress 
>>Description: Calling equipment is non-ISDN. (3) ]
>>< [6c 0c 21 83 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x]
>>[Span 2 D-Channel 0]< Calling Number (len=14) [ Ext: 0  TON: National 
>>Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
>>[Span 2 D-Channel 0]<                           Presentation: 
>>Presentation allowed of network provided number (3) 'xxxxxxxxxx' ]
>>< [70 07 81 34 34 34 37 30 35]
>>[Span 2 D-Channel 0]< Called Number (len= 9) [ Ext: 1  TON: Unknown 
>>Number Type (0)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1) 
>>'yyyyyy' ]
>>[Span 2 D-Channel 0]-- Making new call for cr 1
>>[Span 2 D-Channel 0]-- Processing Q.931 Call Setup
>>[Span 2 D-Channel 0]-- Processing IE 161 (cs0, Sending Complete)
>>[Span 2 D-Channel 0]-- Processing IE 4 (cs0, Bearer Capability)
>>[Span 2 D-Channel 0]-- Processing IE 24 (cs0, Channel Identification)
>>[Span 2 D-Channel 0]-- Processing IE 30 (cs0, Progress Indicator)
>>[Span 2 D-Channel 0]-- Processing IE 108 (cs0, Calling Party Number)
>>[Span 2 D-Channel 0]-- Processing IE 112 (cs0, Called Party Number)
>>[Span 2 D-Channel 0]NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Call 
>>Present, peerstate Call Initiated
>>[Span 2 D-Channel 0]> Protocol Discriminator: Q.931 (8)  len=9
>>[Span 2 D-Channel 0]> Call Ref: len= 2 (reference 1/0x1) (Terminator)
>>[Span 2 D-Channel 0]> Message type: RELEASE COMPLETE (90)
>> > [08 02 81 ac]
>>[Span 2 D-Channel 0]> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) 
>>standard (0) 0: 0   Location: Private network serving the local user (1)
>>[Span 2 D-Channel 0]>                  Ext: 1  Cause: Requested channel 
>>not available (44), class = Network Congestion (2) ]
>>[Span 2 D-Channel 0]NEW_HANGUP DEBUG: Calling q931_hangup, ourstate 
>>Null, peerstate Null
>>[Span 2 D-Channel 0]NEW_HANGUP DEBUG: Destroying the call, ourstate 
>>Null, peerstate Null
>>pbx*CLI>
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