Have some thrifty Fun with a friend's Phone. Leave voicemail without ringing through.

:-)

Dial 267-SLYDIAL (267-759-3425) from any landline or mobile phone.

At the voice prompt, enter the U.S. mobile phone number of the person you want to dial.

You will be directly connected to their voicemail.

(PawPaw says THERE'S AN AD, but I didn't listen to one))