You can still call me on my cell phone when I’m in Japan.
The boss asked me not to call him on his cell phone after 10:00 PM.
A: I couldn’t get in touch with Lisa.
B: Have you tried calling her on her cell phone?
I tried to call you on your cell phone this morning, but you didn’t answer.
Did you call me on my cell phone earlier?
He called Nancy on her cell phone while she was in a meeting.