Who called from 7176287304

Called and then they ended the call shortly after calling

Called my cell phone. No message left.

Called, and before I could answer, went into a missed call - no message left.

Called and when I tried answering said, "I'm sorry that is an invalid answer, try dialing that extension again."  beeped a few times and hung up.

Called my cell phone and left no message. Appears to be a VoIP phone that's been spam-dialing.