Who called from 9723317416

Called 1/19/15 - - didn't leave a message.  Caller ID said DMCR.  Tried to find them online and couldn't.

Same as above.

Just got a call. When I picked up, there was silence. I said something, heard it echoed back (I think it was "Anyone there?") and then the call disconnected.

Caller ID said DMCR. Any idea what those letters might stand for?

A quick Google search turned up some other numbers with similar reports. (ie: 9723317416 & Dry Master Clean @ 972-331-7411).

That led me to Dry Master Cleaning and Restoration on Yelp:
Dry Master Cleaning & Restoration, LLC
101 W Buckingham Rd
Richardson, TX 75081

972-680-8982

I received a call from this number.  I said "hello", they hung up.  I then pulled up my Mr Number app and blocked the call.