They can phone ahead to the emergency room to let them know you are coming.

If he don't stop, they phone ahead and block the road.

He phoned ahead to make sure the shop was open.

"If you phone ahead, it'll even have clean sheets on it."

If it's busy, you may have to wait, but you can phone ahead to book a particular time.

I'll phone ahead and he'll get you safely where you need to go.

For a routine inspection, they will usually phone ahead to ensure the relevant staff are available.

I had phoned ahead in order to see the interior on a weekday.

You could visit me to see them, if you phoned ahead.

We phoned ahead to Grahamstown to have him leave the train and come back.