they answered trans world system. its a bill collector..

These people call using this number and also 623-208-5523.  I answer and get a recording that says 'Please hold on for a very important message'.  If its that important why isn't there someone on the line instead of a recording?  If I don't answer they don't leave a message.  They call on my work number, which is a little suspicious.  I don't give anyone my work number.  I question the validity.  Sounds like scammers.

Received two calls, one on my work phone and one on my cell phone.  No message.  They use the following numbers:
623-738-2757
602-235-0732
623-208-5523
623-239-4563

Definitely a debt collector.

they hung u[p when i called them back