quincy
Senior Member
The law covers the "amplification" of a telephone call to eavesdrop on the conversation. Putting a call on speaker amplifies the sound so others can listen.Show me the statute. The ones I'm familiar with only apply to using electronic means to eavesdrop or intercept the communications.
California PC 632: https://codes.findlaw.com/ca/penal-code/pen-sect-632.html