Carrier preselect is a term relating to the
telecommunication
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...
s industry. It is a method of routing calls for
least-cost routing
In voice telecommunications, least-cost routing (LCR) is the process of selecting the path of outbound communications traffic based on cost. Within a telecoms carrier, an LCR team might periodically (monthly, weekly or even daily) choose between ro ...
(LCR) without the need for programming of
PBX telephone system.
This is the process whereby a telephone subscriber whose telephone line is maintained by one company, usually a former
monopoly
A monopoly (from Greek language, Greek el, μόνος, mónos, single, alone, label=none and el, πωλεῖν, pōleîn, to sell, label=none), as described by Irving Fisher, is a market with the "absence of competition", creating a situati ...
provider (e.g.
BT), can choose to have some of their calls automatically routed across a different telephone company's network (e.g.
Talk Talk
Talk Talk were an English band formed in 1981, led by Mark Hollis (vocals, guitar, piano), Lee Harris (drummer), Lee Harris (drums), and Paul Webb (bass). The group achieved early chart success with the synth-pop singles "Talk Talk (Talk Talk s ...
) without needing to enter a special code or special equipment.
See also
*
Local loop unbundling
Local loop unbundling (LLU or LLUB) is the regulatory process of allowing multiple telecommunications operators to use connections from the telephone exchange to the customer's premises. The physical wire connection between the local exchange and ...
*
Wholesale line rental Wholesale line rental (WLR) is a service in which a telecommunications operator takes control of all the connections made through a telephone line from the native operator and collects the subscription fee from the subscribers.
With WLR the alter ...
External links
Ofcom - Carrier Pre-Selection and Wholesale Line Rental- Outbound Carrier Pre-Selection Services from Six Degrees Group
Telephony
Local loop
Broadband
Telecommunications economics
Teletraffic
Telephone exchanges
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