[Freeswitch-users] move on from asterisk, the Random or rand function

[Anthony Minessale]

moderate news:
there is the expr app that is not exactly intuitive but can generate a
random number as a function variable

${expr(randomize(&x);ceil(random(0,10,&x)))}

This will eval to a random number from 1 to 10 (always start one number less
than where you want to start)

see: http://wiki.freeswitch.org/files/expr.html


On Thu, Apr 8, 2010 at 6:29 PM, Michael Collins <msc at freeswitch.org> wrote:

> Good news, bad news:
>
> The good news is that the XML dialplan is a very efficient way of handling
> call routing. The bad news is that the XML dialplan is not a programming
> language. There is no "rand" function, so you'll need to do something
> different. One option is to use mod_distributor, however it is not "random"
> so that may not work for you. The other option is to call Lua or system or
> something and snag a random number.
>
> -MC
>
>
> On Thu, Apr 8, 2010 at 1:29 PM, Krzysztof Drewicz <
> krzysztofdrewicz at gmail.com> wrote:
>
>> Hi,
>>
>> i'm slowly, but constantly moving from asterisk to fs.
>>
>> Stuck on translating this into a freeswitch:
>>
>> exten => s,1,Random(90:s,3)
>> exten => s,2,Noop(his is hit 10% times)
>> exten => s,3,Dial(SIP/8000)
>>
>> What i need to do is put a bucket on some calling_number + destination
>> numer
>> with some random percent to a voiceguide and hangup.
>>
>> i've found that memcache is very convinent way to put data into
>> dialplan logic in runtime, so i plan to do:
>>
>> <extension name="bucket_part_01" continue="true">
>>        <condition field="${do_bucket}" expression=".+" break="on-true"/>
>>        <condition field="caller_id_number" expression="^123456789$">
>>        <action data="do_bucket=${memcache(get
>> b_${caller_id_number})}" application="set"/>
>>        <action data="bucket_part_02" application="transfer"/>
>>        <action application="hangup"/>
>>        </condition>
>> </extension>
>>
>> So above i check for caller_id_number in the memchache b_123456789 with
>> option 1
>> Then i transfer to anoter extension:
>>
>>  <extension name="bucket_part_02">
>>        <condition field="destination_number" expression="bucket_part_02"/>
>>        <condition field="${czy_robic}" expression="^1$">
>>                <action data="bypass_media=true" application="set"/>
>>                <action data="hits=${memcache(increment
>> hit_bucket_test)}" application="set"/>
>>
>> AND HERE I do need some logic that does if Random() > 50%
>>
>>                <action application="answer"/>
>>                <action
>> data="/usr/local/freeswitch/sounds/pc/weRbusyRightNow.wav"
>> application="playback"/>
>>                <action application="hangup"/>
>>        </condition>
>> </extension>
>>
>>
>> any cleaner approach or someone has done it better?
>> note: don't want to use any lua, api or sth, just plain xml dialplan
>> logic.
>>
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>
>
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>


-- 
Anthony Minessale II

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