Tiscali 2012 Annual Report Download - page 166

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61
Carrier Company that physically makes a telecommunications
network available.
Co-location Dedicated spaces in the machine rooms of an incumbent
operator for the installation by Tiscali of its own network
devices.
CPS Acronym for Carrier Pre Selection, a system for preselecting
an operator. This enables an operator/supplier of local
services to automatically route calls on the network of the
carrier selected by a client who no longer has to enter
special selection codes.
CS Acronym for Carrier Selection, a system for selecting an
operator. Enables a client to select, by entering a special
code, a long distance national or international operator other
than that with whom he/she has a network access
subscription.
Business customers SoHos, small medium and large businesses.
Consumer customers Customers who subscribe to an offer intended for
households.
Dial Up Narrowband internet connection by means of a normal
telephone call, usually charged on a time basis.
Digital This is the way of representing a physical variable in a
language that uses only the figures 0 and 1. The figures are
transmitted in binary code as a series of impulses. Digital
networks, which are rapidly replacing the old analogue
networks, allow greater capacities and greater flexibility by
using computerised technologies for the transmission and
handling of calls. Digital systems offer less noise
interference and can include encryption as protection from
outside interference.
Double Play Combined offer of access to the Internet and fixed
telephony.
DSL Network Acronym for Digital Subscriber Line Network, which is a
network built from existing telephone lines using DSL
technology instruments that, by using sophisticated
modulation mechanisms, enable data packets to be sent
along copper wires and thus the linking of a telephone
handset to a modem at a home or in an office.
DSLAM Acronym for Digital Subscriber Line Access Multiplexer, a
device used in DLS technologies, to multiply the
transmission of data at high capacities on telephone wires,
where a multiplexer means a device that enables the
transmission of information (voice, data, videos) in flows by
means of direct and continuous connections between two
different points on a network.