BenQ S700 - Manual (Page 161)

Menus 145
2. Make sure the phone is turned on and stays in the standby mode.
3. From the phone's menus, select Tools > USB Connection > PC
Sync. & Modem
4. Connect the phone to your computer using the phone's USB
data cable.
To transfer data directly to the phone's memory, you must use the
sync function.
IrDA
Pressing will turn on IrDA for receiving data from other IrDA
devices.
Before transferring data through IrDA, please make sure that the
phone's IrDA sensor is aimed at the destination device's IrDA sensor.
What is IrDA?
IrDA is a standard developed by Infrared Data Association for
transmitting data via infrared light waves. This enables you to transfer
data from one device to another without any cables.