1 Introduction ......................................................................................... 41.1 Bluetooth Protocol Stack............................................................. 42 Protocols in Bluetooth Architecture.................................................. 62.1 Bluetooth Core Protocols ............................................................ 72.1.1 Baseband ....................................................................... 72.1.1.1 Audio................................................................ 72.1.2 Link Manager Protocol ................................................... 72.1.3 Logical Link Control and Adaptation Protocol................. 72.1.4 Service Discovery Protocol (SDP).................................. 82.2 Cable Replacement Protocol ...................................................... 82.2.1 RFCOMM....................................................................... 82.3 Telephony Control Protocol......................................................... 82.3.1 Telephony Control – Binary............................................ 82.3.2 Telephony Control – AT Commands .............................. 82.4 Adopted Protocols....................................................................... 92.4.1 PPP................................................................................ 92.4.2 TCP/UDP/IP ................................................................... 92.4.3 OBEX Protocol ............................................................... 92.4.3.1 Content Formats .............................................. 92.4.4 WAP............................................................................. 102.4.4.1 Content Formats ............................................ 113 Bluetooth Usage Models and Protocols ......................................... 123.1 File Transfer.............................................................................. 123.2 Internet Bridge .......................................................................... 123.3 LAN Access .............................................................................. 133.4 Synchronization ........................................................................ 143.5 Three-in-One Phone ................................................................. 143.6 Ultimate Headset ...................................................................... 154 Summary............................................................................................ 165 References......................................................................................... 176 Acronyms........................................................................................... 19 Protocols ............................................................ 72.1.1 Baseband ....................................................................... 72.1.1.1 Audio................................................................ 72.1.2 Link Manager Protocol ................................................... 72.1.3 Logical Link Control and Adaptation Protocol................. 72.1.4 Service Discovery Protocol (SDP).................................. 82.2 Cable Replacement Protocol ...................................................... 82.2.1 RFCOMM....................................................................... 82.3 Telephony Control Protocol......................................................... 82.3.1 Telephony Control – Binary............................................ 82.3.2 Telephony Control – AT Commands .............................. 82.4 Adopted Protocols....................................................................... 92.4.1 PPP................................................................................ 92.4.2 TCP/UDP/IP ................................................................... 92.4.3 OBEX Protocol ............................................................... 92.4.3.1 Content Formats .............................................. 92.4.4 WAP............................................................................. 102.4.4.1 Content Formats ............................................ 113 Bluetooth Usage Models and Protocols ......................................... 123.1 File Transfer.............................................................................. 123.2 Internet Bridge .......................................................................... 123.3 LAN Access .............................................................................. 133.4 Synchronization ........................................................................ 143.5 Three-in-One Phone ................................................................. 143.6 Ultimate Headset ...................................................................... 154 Summary............................................................................................ 165 References......................................................................................... 176 Acronyms........................................................................................... 19