Template BLF Variables

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I am using FreePBX and over 300 T54W Phones.
I am creating templates for departments with calling queues. The departments need buttons for joining and pausing the queues.

Currently in the phone I have to enter this value i to get a working BLF Key.

*45xxxx*qqq (x=extension q=queue)

Is there a variable for the extension that I can use in a template so that I do not have to do this in every individual phone?

I have seen other phones that use this type of variable *45__line1ext__qqq and when the template is pushed out it automatically adds the extension number for each phone.

Thank you,

[Yisroel_MongoTEL]

That's a question for the system creating the templates, what variables it supports.

The phones themselves (what Yealink is concerned) need to get it already with the correct extension in the place.

You'd better be helped in the FreePBX forums, but I'd assume that if you can use __line1ext__ for other models (using the same template generation) you can use it for the Yealink phones in the same way.