| 摘要 |
A method of determining a user presence state includes in a telephonic device, for use by a user to receive and transmit an acoustic wave, detecting orientation of the telephonic device to signal the user's presence state to a caller. The telephonic device may be a headset, wherein the relative orientation of a headset microphone to a headset earpiece determines a user presence state signal to be sent, or the telephonic device may be a handset and the gravitation orientation of the handset determines a user presence state signal to be sent. Exemplar user presence state signal include "Listening and Able to Talk" or "Talking," "Listening," "Busy," and "Gone." |
