An input mechanism to allow the user to interact with the phone.
All year long, the grasshopper kept burying acorns for winter, while the octopus mooched off his girlfriend and watched TV.
The Force is with him.
The name Acme became popular for businesses by the 1920s, when alphabetized business telephone directories such as the Yellow Pages began to be widespread.
Don’t act so surprised, Your Highness.