What is WiFi:

• Wireless Fidelity or commonly referred to as "Wi-Fi" uses the IEEE 802.11 standard for wireless connectivity to the Internet.
• Wi-Fi is a service based on hotspots in public places such as Hotels, Airports, Coffee Shops and Train Stations.
• These hotspots have access points strategically placed that will allow users with capable equipment to connect to the Internet usually for a per-day fee.
• AT&T uses roaming providers such as Wayport and Concourse for our AT&T WiFi service hotspots.
• What is GPRS / EDGE:
• GPRS = General Packet Radio Services
• EDGE = Enhanced Data rate for Global Evolution.
• AT&T operates a GSM/GPRS network that has been upgraded on the data side for EDGE.
• EDGE allows a high speed data transmission over existing wireless towers.
• Although the PC cards used for AT&T's Data Network closely resemble Wi-Fi cards they are quite different in their network capabilities.
• GPRS/EDGE cards supported by AT&T access our existing network of BTS's (Base Transceiver Stations, a.k.a. Cell sites) instead of using a local hotspot.
• An example of PCMCIA cards for GPRS are Sierra Wireless Air Card 710 and 750. An example of a EDGE card is Sony Ericsson GC82. More information on EDGE.