Private Automatic Branch Exchange. Automated multi-extension
exchanges or switchboards as used nowadays by most offices.
Highest-usage period of the business day when a cellular
system carries the most calling traffic.
Term used for no-contract, no rental charge services where
you buy credit ‘vouchers’ in advance for calls.
Each network has its own pre-pay service.
Private Branch Exchange. Multi-line switchboard exchange,
as used in many offices.
Small accessory that allows you to connect a suitable
digital mobile phone with a portable computer. Primarily
designed for sending and receiving faxes and digital files
(such as email).
An older term for the PC card.
Personal Communications Network. Another term for a GSM1800
network – such as Orange or One 2 One.
Personal Communications System operating in the 1900MHz
band. Another name for GSM1900.
Personal Digital Assistant. A top-of-the-range personal
organiser which allows you to store information and to
use simple computer programs – as made by companies
such as Psion. Also known as a palmtop computer. The Nokia
9110 Communicator is a PDA with a built-in mobile phone.
Private Mobile Radio. Type of mobile and walkie-talkie
equipment commonly used by taxi firms, security guards,
and utility companies. The advantage over cellphones is
that once the equipment is paid for, and a licence is
bought, there are no call costs.
A one-piece, self-contained cellular telephone. The newest
portable model phones are so small - weighing as little
as 3.1 ounces - that they can be folded up and carried
in a suit pocket or purse. Portables normally have built-in
antennas and a rechargeable battery. See also Mobile and
Public Switched Telephone Network. Technical term to describe
the fixed, wired phone system – as operated by British