On Mon, Jul 25, 2011 at 8:47 AM, Isaac Jurado <ijurado@econcept.es> wrote:

On Mon, Jul 25, 2011 at 2:30 PM, Steven Ayre <steveayre@gmail.com> wrote:
>
> There are 2 types of commands... dialplan apps (which execute on the
> current channel) and API commands (which may or may not involve a
> channel, when they do they always need its UUID).
>
> APIs are generally executed from the console but can be used in the
> dialplan. It's a slightly different syntax though:
> <action application="set" data="result=${api arg1 arg2 arg3}"/>

The mod_commands wiki page shows a slightly different syntax:

<action application="set" data="api_result=${sched_api(+5 none avmd
${uuid} start)}"/>

Are the brackets optional?

Curly braces are not optional when using this syntax. When using the set dp app and having ${api_name} in the data argument it will evaluate that argument as an API command.

And also, a command like "uuid_setvar" probably does not generate any
value if it is evaluated like an expression. Which value would be
assigned to the channel variable in such case?

Not sure what you mean. There's no technical reason why you couldn't do this:

However, obviously there's no need to use uuid_setvar on the current channel since you can just use the set application.

-MC

Thanks again.

--
Isaac Jurado
Internet Busines Solutions eConcept

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