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

[Carlos Eduardo]

Hey David,

Test with with this

expression="^.?$"

Regards...



Em sex., 11 de dez. de 2020 às 12:44, David Villasmil <
david.villasmil.work at gmail.com> escreveu:

> Hello all,
>
> I'm trying to test the play_and_get_digits variable from here:
>
> <action application="play_and_get_digits" data="1 1 1 3000 # ''
> silence_stream://250 dtmf_get \d 3000"/>
>
> Like this:
>
>  <condition field="${dtmf_get}" expression="^$">
>
> But it's always false...
>
> How can I test for an empty (null?) variable?
>
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
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-- 
*Carlos E. Wagner*
*Tecnólogo em Telecomunicações, Opensips Certified Professional*

*Fone: +55 48 99981-0894*
*E-mail:* kaduww at gmail.com
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