The bat-phones are ringing off the hook.

I have two bat phones in my secret lair.

I bought two burn phones for our secret mission.

He bought several burner phones for his secret operation.

I used to own flip-phones when they were popular.

I remember using pay phones when I was younger.

Stick phones are becoming popular among tech enthusiasts.

He had multiple trap phones to conduct his illegal activities.

I have two home phones in my house.

I have two house phones in my living room.