Using a fake voice while talking on the phone. Not really a change in the voice as much as the manner in which you speak.
Talking to someone you are not close/comfortable with. Speaking slower, more clearly, using words and a tone that is very different than when talking to a good close friend.

Telemarketers voice. Talking to a relative you're not close to. How you would speak on a phone interview.

My stepmother called, I had to use my phony voice with her.
by Zugg December 13, 2005
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