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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jan du Toit
Sent: Thursday, August 03, 2006 6:30 AM
To: [email protected]
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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