asterisk users - Nov 2016 - Anyway of simulating "hold" so that the moh announcement function works?

In the musiconhold.conf example, it says:

announcement=queue-thankyou
;If this option is set for a class, then when callers get put on hold,
the specified sound will be be played to them.

I'm using the "m" option in Dial and was hoping to make use of
this feature.
Any dialplan way of getting this to trigger without having a physical
phone with "hold"?

Thanks.