Cell Phones Glossary
Technology / Cell Phones Glossary
PIN Unblocking Key (PUK): If a GSM or GAIT subscriber enters the wrong PIN three times in a row, then the wireless mobile phone is locked until the PUK is entered.
Project 25: A joint government-industry standard setting effort to develop technical standards for the next generation of two-way communications equipment.
Public Switched Telephone Network (PSTN): Traditional landline network that mobile wireless systems connect with to complete calls.
Public Utility Commission (PUC): The state regulatory body charged with regulating utilities, including telecommunications.
Public-Safety Answering Point (PSAP): The dispatch office that receives 911 calls from the public. A PSAP may be local fire or police department, an ambulance service or a regional office covering all services.
Pull SMS: The ability to request services (e.g. ringtones or games) from a wireless handset via Wireless Internet. The service requested is sent back to the handset via SMS.
Push SMS: The ability to request services (e.g. ringtones or games) from a wireless handset via sending a preset SMS code to a predetermined number. The service requested is sent back to the handset via SMS.
Radiation: The emission and transmission of energy through space or through a material medium.
Radio Frequency (RF): The spectrum of electromagnetic energy between audio and light: 500 KHz to 300 GHz.
Radio Waves: Electromagnetic energy with frequencies in the 3000 hertz (3 kHz) to 300 billion Hertz (300 GHz) portion of the electromagnetic spectrum.
Radio-Frequency Fingerprinting: A process that identifies a cellular phone by the unique fingerprint that characterizes its signal transmission. RF fingerprinting is one process used to prevent cloning fraud, because a clo . . . View Full Definition
Rate Center: The geographic area used by local exchange carriers to set rate boundaries for billing and for issuing phone numbers.
Repeater: Device that receives a radio signal, amplifies it and retransmits it in a new direction. Used in wireless networks to extend the range of base station signals, expanding coverage more econom . . . View Full Definition
Roaming: The ability to use your cellular phone outside your usual service area – when traveling outside of the home service area defined by a service provider. Higher per-minute rates are usually ch . . . View Full Definition
Roaming Agreement: An agreement between two or more wireless telephone companies outlining the terms and conditions under which the participating companies will provide wireless service to each others subscrib . . . View Full Definition
Round-Up Calls-Billing: When calls are billed by the minute, any call that uses a portion of a minute is rounded up and billed for the whole minute. For example, if you make a call that lasts 3 minutes and 2 second . . . View Full Definition
S-Band: The frequency spectrum near 2 GHz used for land based microwave and some mobile satellite communications.
Service Charge: The amount customers pay each month to receive wireless service. This amount is fixed, and to be paid monthly regardless of how much or how little customers use their wireless phones.
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