Re: [Freeswitch-users] Hello , about calculate numbers

<action application="set" data="var=${expr(${var}+1)}"/> On Tuesday 12 January 2010, Chia-Yen Wu wrote:

Hello everyone, Is there anyway to calculate number in dialplan.xml?

like example: <action application="set" data="var=1"/> and with an action , I can do : var=var+1

I have tried mod_expr, but failed to catch the variable, like below: <action application="set" data="var=${expr($var+1)}"/>