Re: [Freeswitch-users] Can't test for empty variable

On 2020-12-11 15:43 (Fri), David Villasmil wrote:

<condition field="${dtmf_get}" expression="^$">

But it's always false...

How can I test for an empty (null?) variable?

Hi David, try checking for any characters (`".+"`), then you create an `<anti-action>` clause that'll be executed on empty (null?) variable. https://freeswitch.org/confluence/display/FREESWITCH/XML+Dialplan#XMLDialpla... Best, Per.