Says "SEC" on caller id
They called and did not leave a message.
I called it back twice with no answer.

Said "Sec" on the caller ID.  Called 3 times in one morning.  I asked to speak to the manager - so they promptly hung up.  I called the number back.  They answered "security".  I told them the story and they said, "Oh sorry, what was the name of your company."  I told them and she said it would be "taken care of".  WASTING MY TIME!

Trying to sell alarms and camera systems.