User manual

VoloFone™ VF100 User Manual

Glossary

ADSL – Asymmetric Digital Subscriber Line. Transmits high-speed data downstream to the end user and

lower-speed data upstream toward the network. Many wired broadband services use ADSL.

APN – Access Point Name. The name of an ISP’s wireless access point.

Broadband – Broadband refers to telecommunication that provides multiple channels of data over a single

communications medium, typically using some form of frequency or wave division multiplexing.

DHCP – Dynamic Host Configuration Protocol - A set of rules used by communications devices such as a

computer, router or network adapter to allow the device to request and obtain an IP address from a server

which has a list of addresses available for assignment.

DTMF – Dual Tone Multi-Frequency

EDGE – Enhanced Data GSM Environment. A faster version of the GSM standard. It is faster than GSM

because it can carry messages using broadband networks that employ more bandwidth than standard GSM

networks

Fixed Wireless – Refers to wireless devices or systems that are situated in fixed locations, such as an

office or home, as opposed to devices that are mobile, such as cell phones and PDAs. Fixed wireless

devices normally derive their electrical power from utility mains, as opposed to portable wireless devices

that normally derive their power from batteries.

Frequency – Assigned channel space within the radio wave spectrum.

GPRS – General Packet Radio Service. A technology that sends packets of data across a wireless network

at speeds of up to 114Kbps. It is a step up from the circuit-switched method; wireless users do not have to

dial in to networks to download information. With GPRS, wireless devices are always on - they can receive

and send information without dial-ins. GPRS is designed to work with GSM.

GSM – Global System for Mobile (Communications). GSM is a digital mobile telephone system that is

widely used in Europe and other parts of the world. GSM uses a variation of Time Division Multiple Access

(TDMA) and is the most widely used of the three digital wireless telephone technologies (TDMA, GSM, and

CDMA). Since many GSM network operators have roaming agreements with foreign operators, users can

often continue to use their mobile phones when they travel to other countries.

HSDPA – High Speed Download Packet Access.

HTTP – HyperText Transfer Protocol. The protocol used by the Web server and the client browser to

communicate and move documents around the Internet.

IMEI – The International Mobile Equipment Identity is a number unique to every GSM and UMTS mobile

phone. It is usually found printed on the phone underneath the battery and can also be found by dialling the

sequence *#06# into the phone.

The IMEI number is used by the GSM network to identify valid devices and therefore can be used to stop a

stolen phone from accessing the network.

ISP – Internet Service Provider.