Patent ID: 8525869

Claim:
A method for video telephony communication using a terminal in which a power saving mode is set, the method comprising: executing video telephony communication for transmitting and receiving video signals and voice signals; determining a power saving mode set in the terminal; measuring at least one environmental value corresponding to the determined power saving mode, the at least one environmental value comprising an intensity of a received Radio Frequency (RF) signal; and stopping transmission of the video signals when the at least one environmental value is less than a predetermined value, the predetermined value being correctable and being displayed on a screen, wherein in the determining of the power saving mode, the power saving mode is determined to be one of a plurality of power saving modes comprising a luminous intensity based power saving mode, a luminous intensity and RF signal intensity based power saving mode, and an RF signal intensity based power saving mode, and wherein in an environment of a weak electric field, power supplied to a camera module or a display unit is cut off.