Patent ID: 8644891

Claim:
A voice communication apparatus comprising: a first radio communication portion; a second radio communication portion different from said first radio communication portion; and a power control portion to control power supply to said first radio communication portion and said second radio communication portion, wherein said power control portion includes a first cutoff portion to cut off power supply to said first radio communication portion if communication for a call by said second radio communication portion is established when power is supplied to both said first radio communication portion and said second radio communication portion, and said power control portion further includes a supply start portion to immediately supply power to said first radio communication portion if communication established by said second radio communication portion is disabled after power supply to said first radio communication portion is cut off, wherein said power control portion includes a second cutoff portion to cut off power supplied to said second radio communication portion if communication established by said second radio communication portion is disabled after power supply to said first radio communication portion is cut off, and wherein the voice communication apparatus is within a range communicable by both the first radio communication unit and the second radio communication unit.