Jan du Toit
2006-Aug-03 03:29 UTC
[asterisk-users] How to check if channel varaible have been set/not empty?
Hi. How can you check if a channel variable has been set in the dialplan? I have some logic in the dialplan that must do a ExecIF() if a specific channel variable has been set, otherwise it must do nothing. Thank you very much.
Rushowr
2006-Aug-03 05:03 UTC
[asterisk-users] How to check if channel varaible have been set/notempty?
Use the ISNULL function. ISNULL will return a value of 1 if the string it's
fed contains data. Example:
If you set VARNAME=foo, and then grab the value of ${ISNULL(${VARNAME})}, it
will be 0 because VARNAME has data
-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Jan du Toit
Sent: Thursday, August 03, 2006 6:30 AM
To: asterisk-users@lists.digium.com
Subject: [asterisk-users] How to check if channel varaible have been
set/notempty?
Hi.
How can you check if a channel variable has been set in the dialplan?
I have some logic in the dialplan that must do a ExecIF() if a specific
channel variable has been set, otherwise it must do nothing.
Thank you very much.
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