[asterisk-bugs] [Asterisk 0009099]: Calls arriving into the dialplan from chan_zap with a zero length Called Number IE fail to goto 's' priority of assigned context

[noreply at bugs.digium.com]

The following issue has been ASSIGNED. 
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http://bugs.digium.com/view.php?id=9099 
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Reported By:                kb1_kanobe2
Assigned To:                file
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Project:                    Asterisk
Issue ID:                   9099
Category:                   Channels/chan_zap
Reproducibility:            always
Severity:                   minor
Priority:                   low
Status:                     assigned
Asterisk Version:            1.2.15 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        Yes 
Request Review:              
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Date Submitted:             02-19-2007 01:29 CST
Last Modified:              12-17-2007 12:02 CST
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Summary:                    Calls arriving into the dialplan from chan_zap with
a zero length Called Number IE fail to goto 's' priority of assigned context
Description: 
When an ISDN call arrives with a zero length Called Number IE. Eg.:

< [70 01 a1]
< Called Number (len= 3) [ Ext: 1  TON: National Number (2)  NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1) '' ]

A simple context consisting of:

 [in-cs1000]
 exten => s,1,NoOp(s)
 exten => s,2,Answer()
 exten => s,3,Dial(zap/g2/0,30)            ; Handle OSA IE

 exten => _X.,1,NoOp(_X.)
 exten => _X.,2,Answer()
 exten => _X.,3,Dial(zap/g2/${EXTEN},30)   ; Pass the call through

Results in a behavior of:

  -- Extension '' in context 'in-cs1000' from '8856800' does not exist. 
Rejecting call on channel 0/18, span 1

However, a context of:

 [in-cs1000]
 exten => ,1,NoOp(This shouldn't be necessary)

 exten => s,1,NoOp(s)
 exten => s,2,Answer()
 exten => s,3,Dial(zap/g2/0,30)            ; Handle OSA IE

 exten => _X.,1,NoOp(_X.)
 exten => _X.,2,Answer()
 exten => _X.,3,Dial(zap/g2/${EXTEN},30)   ; Pass the call through

results in:

 -- Accepting call from '8856800' to '' on channel 0/16, span 1
 -- Executing NoOp("Zap/13-1", "s") in new stack
 -- Executing Answer("Zap/13-1", "") in new stack
 -- Executing Dial("Zap/13-1", "zap/g2/0|30") in new stack

Notice that the '' priority as defined was apparently never touched. 

The '' priority really ought to be the entrypoint if defined and 'i' if
it's not, however having a line that reads "exten => ,1,..." is also quite
counterintuitive... other than ISDN issues is there any logical reason not
to have the call jump straight into to the 's' context?

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---------------------------------------------------------------------- 
 svnbot - 12-17-07 12:02  
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Repository: asterisk
Revision: 93250

U   branches/1.4/channels/chan_zap.c

------------------------------------------------------------------------
r93250 | file | 2007-12-17 12:02:48 -0600 (Mon, 17 Dec 2007) | 6 lines

If a call is received with a called number IE containing nothing go to the
's' extension.
(closes issue http://bugs.digium.com/view.php?id=9099)
Reported by: kb1_kanobe2
Patches:
      20070906__9099.diff.txt uploaded by Corydon76 (license 14)

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http://svn.digium.com/view/asterisk?view=rev&revision=93250 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
12-17-07 12:02  svnbot         Checkin                                      
12-17-07 12:02  svnbot         Note Added: 0075579                          
12-17-07 12:02  svnbot         Assigned To              dwaynemh => file    
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