See also:

Top redial
1. Press the OFF hook switch and load the outgoing call history. 2. Select the “DIAL” menu or press the OFF hook switch . ...

Voice command system
Voice command system 1) OFF hook switch 2) ON hook switch 3) Talk switch To turn on the voice command system, press the talk switch briefly. To turn off the voice command system, wait f ...

For U.S.A.
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...