evices and some of their key features are summarised in Table 3-7 and shown in Figure 3-20. Access point and Printer adapter print server Dial-up modem adapters Figure 3-20: A Variety of Bluetooth Devices (courtesy of Belkin Corporation, D-Link (Europe) Ltd., Linksys (a division of Cisco Systems Inc.) and Zoom Technologies, Inc.) As developing wireless PAN technologies such as wireless USB mature, a comparable range of devices will be developed to support these networks. Novel capabilities inherent in these new technologies will also result in new device types offering new services, an example being the Wireless Network Physical Architecture Table 3-7: Bluetooth Devices and Features Bluetooth device Key features Mobile phone Interface with a Bluetooth hands-free headset. Connect to PDA or PC to transfer or back-up files. Exchange contact details (business cards), calendar entries, photos, etc. with other Bluetooth devices. Connect to PC to transfer or back-up files. Connect to the Internet via a Bluetooth access point. Exchange contact details (business cards), calendar entries, photos, etc. with other Bluetooth devices. Headset or headphones Hands-free mobile telephony. Audio streaming from PC, TV, MP3 player or hi-fi system. Audio transceiver Audio streaming from a PC or hi-fi system to Bluetooth headphones. Access point Extend a LAN to include Bluetooth enabled devices. Internet connectivity for Bluetooth devices. Bluetooth adapters Bluetooth enable a range of devices, such as laptops or PDAs. As for WLAN NICS, they are available in a range of form factors, with USB dongles being the most popular. Serial adapter for plug-and-play connectivity to any serial RS-232 device. Print adapter Print files or photos from Bluetooth enabled device. PC input devices Wireless connectivity to a PC mouse or keyboard. GPS receiver Provide satellite navigation capabilities to Bluetooth-enabled devices loaded with required navigation software. Dial-up modem Provide wireless connectivity from a PC to a dial-up modem. capability o