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[chris at fowler.cc]

I have the following defined:

<!-- Billing Open? -->
<extension name="billing_open" continue="true">
<!-- man strftime - M-F, 9AM to 5PM -->
<condition field="${strftime(%w)}" expression="^([1-5])$"/>
<condition field="${strftime(%H%M)}" expression="^((09|1[0-6])[0-5][0-9]|1700)$">
<action application="set" data="billingopen=true"/>
</condition>
</extension>


<!-- billing line -->
<extension name="billing">
<condition field="destination_number" expression="^billing$|^2001$"/>
<condition field="billingopen" expression="^true$">
<...>


But despite the "Billing Open" ext firing correctly:
Action set(billingopen=true)

The Billing extenstion fails to get the data:
Regex (FAIL) [billing] billingopen() =~ /^true$/ break=on-false

Please could someone point me in the right direction for using variables correctly in a dialplan? I must be missing something simple...

Thanks, Chris.

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[brian at freeswitch.org]

This again? Lets see if this helps!

http://wiki.freeswitch.org/wiki/Dialplan_XML#Anatomy_of_the_XML_Dialplan


The dialplan is not processed and executed line by line... its compiled and installed into the session before it goes into execute state.
So you can't use set on one line then use that var in a condition on the next line because the SET hasn't happened yet. Once the session
leaves the routing state it enters execute state. This is when the compiled list of things to do gets ran.


If you wish to re-enter the dialplan and re-eval some condition you use execute_extension or "transfer" the session back to the dialplan.


/b



On Apr 22, 2009, at 2:19 PM, Chris Fowler wrote:

[msc at freeswitch.org]

On Wed, Apr 22, 2009 at 12:19 PM, Chris Fowler <chris@fowler.cc> wrote:

[chris at fowler.cc]

Brian, Michael,

Thanks for the help - I had read that but not fully comprehended it until you spun it the way you did.

Here's what I ended up with - if there's optimization that could be done let me know. Happy to update the wiki if this is a common request.

<!-- Provide an internal ext # for Sales -->
<extension name="RS-Sales-x2002">
<condition field="destination_number" expression="^2002$">
<action application="transfer" data="RS-Sales"/>
</condition>
</extension>

<!-- Setup variables prior to transfering to call handler for sales -->
<extension name="RS-Sales" continue="true">
<!-- man strftime - M-F, 9AM to 5PM -->
<condition field="destination_number" expression="^RS-Sales$"/>
<condition field="${strftime(%w)}" expression="^([1-5])$"/>
<condition field="${strftime(%H%M)}" expression="^((09|1[0-6])[0-5][0-9]|1700)$">
<action application="set" data="RS-Sales_open=true"/>
<action application="transfer" data="xfer-to-sales"/>
<anti-action application="set" data="RS-Sales_open=false"/>
<anti-action application="transfer" data="xfer-to-sales"/>
</condition>
</extension>

<!-- Handle Sales Call -->
<!-- If Sales is open then route to extension first then vMail; else direct to vMail -->
<extension name="xfer-to-sales">
<condition field="destination_number" expression="^xfer-to-sales$"/>
<condition field="${RS-Sales_open}" expression="^true$">
<action application="bridge" data="user/1001@${domain_name}"/>
<action application="answer"/>
<action application="sleep" data="2000"/>
<action application="voicemail" data="default ${domain_name} 2001"/>
<anti-action application="voicemail" data="default ${domain_name} 2001"/>
</condition>
</extension>

Thx, Chris.


From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Michael Collins
Sent: Wednesday, April 22, 2009 13:10
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] Using Variables in Dialplans


On Wed, Apr 22, 2009 at 12:19 PM, Chris Fowler <chris@fowler.cc> wrote:
I have the following defined:

   <!-- Billing Open? -->
   <extension name="billing_open" continue="true">
     <!-- man strftime - M-F, 9AM to 5PM -->
     <condition field="${strftime(%w)}" expression="^([1-5])$"/>
     <condition field="${strftime(%H%M)}" expression="^((09|1[0-6])[0-5][0-9]|1700)$">
       <action application="set" data="billingopen=true"/>
     </condition>
   </extension>


   <!-- billing line -->
   <extension name="billing">
     <condition field="destination_number" expression="^billing$|^2001$"/>
     <condition field="billingopen" expression="^true$">
     <...>


But despite the "Billing Open" ext firing correctly:
       Action set(billingopen=true)

The Billing extenstion fails to get the data:
       Regex (FAIL) [billing] billingopen() =~ /^true$/ break=on-false

Please could someone point me in the right direction for using variables correctly in a dialplan?  I must be missing something simple...

Thanks, Chris.

This is a classic case of "dialplan is parsed all at once." The reason that it is failing is because ${billingopen} is not defined when the extension named "billing" is parsed. You need another pass through the dialplan, for example by adding a transfer app to your "billing_open" extension:

<!-- Billing Open? -->
  <extension name="billing_open" continue="true">
  <!-- man strftime - M-F, 9AM to 5PM -->
     <condition field="${strftime(%w)}" expression="^([1-5])$"/>
     <condition field="${strftime(%H%M)}" expression="^((09|1[0-6])[0-5]
       <action application="set" data="billingopen=true"/>
       <action application="transfer" data="billing"/>
     </condition>
   </extension>

This will send the call back through the dialplan and into the "billing" extension, this time with the value of ${billing_open} == "true" so you can now work with it. The originally dialed number is now available in the ${rdnis} channel variable in case you need it.

Have fun and let us know how it goes.
-MC

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[msc at freeswitch.org]

On Wed, Apr 22, 2009 at 5:20 PM, Chris Fowler <chris@fowler.cc> wrote:

[chris at fowler.cc]

I added a Wiki example on this. Hopefully it will help the next FreeSWITCHer…

http://wiki.freeswitch.org/wiki/Time_of_Day_Routing


From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Michael Collins
Sent: Thursday, April 23, 2009 08:29
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] Using Variables in Dialplans



On Wed, Apr 22, 2009 at 5:20 PM, Chris Fowler <chris@fowler.cc> wrote:
Brian, Michael,

Thanks for the help - I had read that but not fully comprehended it until you spun it the way you did.

Here's what I ended up with - if there's optimization that could be done let me know. Happy to update the wiki if this is a common request.

That looks pretty good. It is clean and readable and most importantly it sounds like it does what you need!
-MC

[msc at freeswitch.org]

On Thu, Apr 23, 2009 at 1:07 PM, Chris Fowler <chris@fowler.cc> wrote: