Called my business phone and does not leave message.

Keeps calling my buisness number never leaves a message. Has called at leat 6 times

The number is from Quill Corporation. I had recieved a number of calls from that number, with no messages left and seemingly no one on the line when I answered the phone. This morning I got a call from the same number, and it was a sales person from Quill, wanting to sell me a warranty on a business machine I bought from them in December.

That would make sense, we use Quill and they do try to sell warranty all the time.