Possible SCAM by telephone
 

We have been getting multiple phone calls from a number listed as Fort Lauderdale, FL, according to caller ID, this number is 954-734-8506. One ring and a hang up. According to AARP (I think) this is a new scam, if you call back you get an automated system that keeps you on the line for several minutes, while you are billed at several $$ per minute. Do not call back on these 1 ring and hang up calls.

Find Telemarketers with #{area_code}-#{prefix} Numbers | Report Telemarketing Calls

I googled that number and it has 299 complaints of it being telemarketer. You just can never be too careful.