[asterisk-users] vars in Macros called by DIAL with option M

[Al Baker]

Err - Ok - let me ask this in MUCH simpler way

1 - In dialplan , you set a Variable called   "MYVAR", to "Apple"

2 - You go into MACRO and NOOP the VALUE of "MYVAR" -What SHOULD it BE ?

3 - While IN MACRO you set VALUE of "MYVAR" = "Pear"

4 - You leave MACRO and get back to DIALPLAN and NOOP the value of MYVAR 
- What should it be

=========== 2nd Question  ===
 CAN the DIAL command call a SUBROUTINE instead of a MACRO ?

If so WOULD that help him out ?

Any clarification much apprecatted

Tilghman Lesher wrote:
> On Tuesday 05 August 2008 10:47:34 Thomas Winter wrote:
>   
>> Hi all,
>>
>> Iam using an DIAL Command wird Macro if callee is answer the call.
>>
>> exten => 123,n,DIAL(SIP/123 at provider,180,gM(test_connect))
>> exten => 123,n,NoOp( ${var_from_macro})
>>
>>
>> In Macro test_connect Iam generating an new variable var_from_macro and
>> would like to use this var in the original dialplan.
>> I tried also __var_from_macro but didnt work. How can I set vars in macros
>> called by DIAL so that I can use these vars in the Dialplan or in the h
>> extention.
>>     
>
> There isn't any good way to do that, period.  When it comes to inheritance,
> variables are only inherited from a master channel to a slave channel.  In the
> case of the Macro operating within the Dial, that Macro is occurring
> exclusively on the slave channel.  You cannot directly set variables on other
> channels (for obvious race-condition reasons).
>
> However, you could do this in a roundabout way, either by using a database or
> by using shared variables in trunk.  You'd need to first set (in the master
> channel, before the Dial) an inherited variable containing the name of the
> master channel, i.e. Set(_masterchan=${CHANNEL(name)}), then use that
> inherited variable to set the shared variable in the master channel from the
> slave channel, i.e. Set(SHARED(foo,${masterchan})=...).  Finally, you would
> be able to access the shared variable in the master channel with
> ${SHARED(foo)}.  Again, the SHARED function is only available in trunk at this
> time, although you could probably backport it to 1.4 with minimal trouble.
>
>