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• 3G (3rd Generation) - A standard defined by data rates up to 14.0 Mbit/s on the downlink and 5.8 Mbit/s on the uplink.
• WiMAX (Worldwide Interoperability for Microwave Access) - Wireless transmission of data with broadband like speeds without the need for cables.
• EV-DO (Evolution-Data Optimized) - The 3G broadband wireless version of the CDMA. (Verizon and Sprint use this technology)
• HSDPA (High-Speed Downlink Packet Access) - This is a higher speed update of UMTS. (Cingular and T-Mobile use this technology)
• UMTS (Universal Mobile Telecomunications System) - The mobile broadband version of GSM standard. (Cingular and T-Mobile use this technology)
• TDMA (Time Division Multiple Access) - Divides radio frequency into time slots and then allocating slots to multiple calls. This can allow three calls on the same frequency.
• CDMA (Code Division Multiple Access) - This process works by assigning each call a unique code, then spreading the call over frequencies that are available. This process can allow ten calls in the same spectrum as one analog call.
• iDEN - This technology is similar to TDMA and is used by Nextel.
• GSM (Global System for Mobile Communications) - GSM is based from TDMA technology. This technology is the standard for most countries outside the United States.
• GPRS (General Packet Radio Service) - This is a faster version of GSM an allows for the downloading of ring tones and pictures to and from your cell phone. (Cingular, AT&T, and T-Mobile use this technology)
• 1xRTT (1 x Radio Transmission Technology) - This is a faster version of CDMA. (Verizon and Sprint use this technology, there equivalant to GPRS)
• SMS (Short Message Service) - The transmission of short alphanumeric text messages. Usually no longer than 160 alphanumeric characters & contain no images or graphics.
• MMS (Multimedia Service) - The transmission of images or graphics to other MMS cell phones or e-mail addresses. Usually costs more than SMS.
• MNO (Mobile Network Operator) - A company that offers mobile phone service and owns the infrastructure and its own licenced frequency allocation of radio spectrum.3G
• MVNO (Mobile Virtual Network Operator) - A company that offers mobile phone service but does not own the infrastructure. These companies usually lease the radio spectrum from MNO's.