Who called from 2132102506

No one speaks when you answer. Sounds like it's one of those automatic services telemarketers use to determine which numbers are "active" before they sell the numbers to a third party. Don't answer; they'll think it's a dead number.

Called 2x in a row.  No id, no voicemail

got a call this morning...answered, but no sound at all.... then disconnected after 5s.

Same thing happened to me except I hung up after about 10 sec.?

Received a call.. no sound and then disconnected after 5s as well.