Call Received, call Blocked. 6:38PM on the 4th of July a holiday, did search on the phone number:
This Business is not BBB accredited
Discount Power, Inc.
Phone: (203) 929-3200
Fax: (203) 909-6582
6 Armstrong Rd, Shelton, CT 06484
dmcguire@discountpowerinc.com  
http://www.discountpowerinc.com
Twitter   BBB® F Rating On a scale of A+ to F
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This is a robocall I'm sure. Lately I've been turning the phone on and not saying a word.  Caller usually disconnects after no more than 20 seconds. Only one recent robo did I even hear any noise.

I've been receiving calls from this number for a few weeks, no message ever left.  I called them back today and spoke to customer service.  I was advised they have been made aware that someone in Ohio is using their number somehow to call landlines and cell phones in Ohio.  They have notified the FCC and are working on the issue, but say the calls are not coming from them.