EXP40 Provisioned as a Stand Alone Device?

[printwest]

We have eliminated the need for receptionist now that we have a 3CX PBX, DID's and Yealink phones, but a couple times a day we have vendors and/or customers come in.

Instead of having someone sit up in the front office is it possible to provision an expansion module without a host phone?

We want to put up a sign that says press a button (on the EXP) for assistance. That way we can program buttons such as "Pickup Will Call Order", "Dropoff", "I'm here to see John Doe", etc. Then 3CX would send a recorded message and/or email depending on which button was pressed.