I will call upon my friend tomorrow.

I had to call collect because I didn't have any money.

The pilot used the call letters to identify the aircraft.

I need to apply for a call loan to cover my expenses.

I need to find the call number for this book.

The pilot used his call sign to identify himself to air traffic control.

The audience gave a standing ovation during the curtain call.

I always request a morning call when I stay at a hotel.

I received a phone call from my friend.

I used phonovision to make a video call.