The doors before them buzzed, and the deadbolt fell open.

The door buzzed several times before Wesley even heard it.

The door buzzed; he pushed it open and entered the foyer.

The door buzzed once more and the intercom crackled again.

The door buzzed, and she called for them to enter.

At least Paul's ring was answered, for the door buzzed to release the automatic lock.

The door buzzed and was opened by the guard stationed there.

Then the driver hunched down with a magazine, the door buzzed open and Maxim went in.

The door buzzed then, and Barbara went to answer it.

After a moment, the door buzzed back, releasing the lock, and I went in.