Section 2H: Using Bluetooth Wireless Technology 141Using BluetoothBluetooth Service ProfilesThe Bluetooth wireless technology specification is a protocolthat describes how the short-range wireless technologyworks, whereas individual profiles describe the servicessupported by individual devices like your phone. Profilesreduce the chance that different devices will not worktogether.Your phone supports the following profile services: SDAP (Service Discovery Application Profile) - Thismandatory profile is used to find out which profiles areoffered by the Server device. FTP (File Transfer profile) - Provides access to the filesystem on another device. This includes support forgetting folder listings, changing to different folders,getting files, putting files and deleting files. It uses OBEXas a transport and is based on GOEP. GAP (Generic Access Profile) - Provides the basis for allother profiles. HFP (Hands Free Profile) - This is commonly used to allowhands-free car kits to communicate with wireless phoneswithin a vehicle. HSP (Headset Profile) - This is the most commonly usedprofile, providing support for the popular Bluetoothheadsets to be used with mobile phones. It relies on SCOfor audio and a subset of AT commands from GSM 07.07for minimal controls including the ability to ring, answera call, hang up, and adjust the volume. (Note: This devicedoes not support the stereo headset profile.) HID (Human Interface Device Profile - [Bluetoothkeyboard only]) - Provides support for devices such asmice, joysticks, keyboards, etc.
