[asterisk-bugs] [Asterisk 0015056]: Blank FORWARD_CONTEXT is not ignored

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=15056 
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Reported By:                p_lindheimer
Assigned To:                
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Project:                    Asterisk
Issue ID:                   15056
Category:                   Applications/app_dial
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.21.1 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-05-07 17:53 CDT
Last Modified:              2009-05-07 18:03 CDT
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Summary:                    Blank FORWARD_CONTEXT is not ignored
Description: 
Once you have set FORWARD_CONTEXT=some-context in your dialplan, it is not
possible to "unset" the channel variable. Therefore the only way to unset
it is to set it blank:

exten => exten,n,Set(FORWARD_CONTEXT=)

However this appears to result in Asterisk using a non-existent blank
context for the forwarded call resulting in it failing.

Since there is no way to reset a context, I would expect this to treat a
blank context as if the variable was not set.
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 (0104404) p_lindheimer (reporter) - 2009-05-07 18:03
 http://bugs.digium.com/view.php?id=15056#c104404 
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btw - If I am not mistaken, the TRANSFER_CONTEXT is handled correctly and
may be reviewed. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-05-07 18:03 p_lindheimer   Note Added: 0104404                          
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