iCellPhone
Cellphones, Cellphone Service, Glossary of Cellphone Terms
iCellPhone Glossary Page 2
Learn about the technology. An informed buyer makes better decisions.Glossary Page 2 (H-N)
Handset: A wireless or cellular phone, cell phone, digital, PCS, or analog mobile phone.
Handshake: Signals between a wireless phone and a wireless system to accomplish call setup.
HDML: A computer programming language that does for wireless Internet access what HTML does for land-based Internet access. Handheld Device Markup Language (HDML) allows wireless devices such as smart phones and handheld computers to communicate on the Internet.
Handoff: The process by which the Mobile Telephone Switching Office passes a cellular phone conversation from one transmission site to another site without disconnection. The handoff is performed so quickly that users rarely notice.
Hands-free: An important safety feature that's included with most of today's mobile phones. It permits drivers to use their cellular phone without lifting or holding the hand-set to their ear.
Hertz: The unit which expresses cycle frequency.
Home Coverage Area: The area in which one may make cellular calls without incurring long distance or roaming charges. Some cellphones are activated with nationwide long distance coverage, but still have a local coverage area which is called home. We have calling plans which don't charge for roaming outside of your home coverage area.
Home RF: A digital wireless communications protocol designed for the transport of voice and multimedia content between consumer electronic devices(including PCs) in a residential setting. Operates at 2.4 GH.
Interconnection Fee: A wireless call must sometimes be routed through a landline in which a connection fee is charged.
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J2ME (Java 2 Micro Edition): A Java environment optimized to run applications on devices small devices with limited processing power and memory.
Landline: Standard telephone lines. The network of fiber optic and metallic or copper phone lines.
LCD (Liquid Crystal Display): A flat panel screen used to display numbers and/or characters.
LED (Light Emitting Diode): A light on a cellphone to alert the user of various conditions.
Local Exchange Area: That part of the national telephone network controlled by the local telephone operating company and separate from the long distance network. Local exchange areas are generally regulated by the state public utility commission.
Memory Dialing: A feature of a wireless phone that allows multiple numbers to be stored in the phone itself for quick dialing by pressing one or two buttons.
Message alert: (Also referred to as "call-in-absence" indicator) A light or other indicator announcing that a phone call came in; an especially important feature if the cellular subscriber has voice mail.
Microbrowser: A modified version of the original Web browser. It allows a wireless user to find data on the Internet through a handheld device.
MMS (Multimedia Messaging Service): MMS messages may include multimedia elements such as pictures, video and audio.
Mobile Phone: The term that can be inter-changed with cellular phone or wireless phone.
MTSO (Mobile Telephone Switching Office): The central switch that controls the entire operation of a cellular system. It is a sophisticated computer that monitors all cellular calls, tracks the location of all cellular-equipped vehicles traveling in the system, arranges handoffs, keeps track of billing information, etc.
No-answer transfer: A service feature (provided by some cellular carriers in combination with call-waiting) that automatically transfers an incoming cellular call to another phone number if the cellular subscriber is unable to answer.
NAM (Number Assignment Module): The NAM is the electronic memory in the cellular phone that stores the telephone number. Phones with dual- or multi-NAM features offer users the option of registering the phone with a local number in more than one market.
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No Answer Transfer: If a call is not answered in a specified number of rings, it will be transferred to another phone number of the user's choice.
No Service Indicator: Usually a LED light on the phone that tells the user that wireless service is unavailable in a particular location.