Asterisk Project : Asterisk 10 Function_ISNULL This page last changed on Oct 14, 2011 by wikibot. # ISNULL() ### Synopsis Check if a value is NULL. ### Description Returns `1` if NULL or `0` otherwise. ### Syntax
    ISNULL(data)
##### Arguments `data` ### See Also ### Import Version This documentation was imported from Asterisk version SVN-branch-10-r340810.

Document generated by Confluence on Oct 14, 2011 13:25