For instance, the phone keeps track of how many steps you have taken.

She prayed as the phone kept ringing at the other end.

But the phone kept on ringing- ten times, and then more than a dozen.

I close my eyes and let the phone keep on ringing.

The phone kept ringing through the time it took him to answer.

I've been doing this for years, but the phone keeps ringing.

But the phone rang again - and kept ringing for 10 more minutes.

He would have caught up with them later, but the phone kept ringing.

The phone keeps ringing and he has to get back to the studio.

But the phone kept ringing and no one was picking it up.