UK Telecoms and ICT Index and Links - R

RADIOCOMMUNICATIONS AGENCY
The Radiocommunications Agency was an executive agency of the DTI responsible for the allocation, maintenance and supervision of the UK radio spectrum. Now part of Ofcom.

external links:Ofcom (previously Oftel) complaints
Ofcom contact form for complaints
Radiocommunications Agency
Now absorbed into Ofcom but archive information available

related index entries:OFCOM - Office of Communications


RADSL - Rate Adaptive DSL
A DSL (digital subscriber line) technology which adapts its data speed to the wire length and quality. The technology effectively increases the reach of DSL services from the local exchange beyong the limitations of ADSL but with a corresponding reduction in speed.

external links:ADSL Guide
Broadband access guide
Broadband Help

information sheets:Fixed landline business telecommunications services
Improving Internet connectivity with ISDN, ADSL, cable, broadband and mobile broadband
Introduction to telecoms terms and technologies
ISDN, ADSL, cable, broadband and mobile telecoms services availability
local loop unbundling (LLU)

related index entries:ADSL - Asymmetric Digital Subscriber Line
BROADBAND
LOCAL LOOP


RAS - Remote Access Service
Connecting to a network from a remote location.


RESELLER
Resellers are operators that purchase call-time from other companies, including ISVR operators, and offer cheap international calls. They are not licensed by Oftel.

related index entries:TELECOMS OPERATORS


RING BACK
A user calling an engaged number can request that the call is returned when the number is free. Also known as call return. (Available on all digital exchanges.)

related index entries:CALL WAITING


ROAMING AGREEMENT
Agreements between mobile phone networks allowing their subscribers to use each others networks Internationally where available.

external links:Globalstar
Satellite telephone and data systems and services
Orange international roaming
T-mobile: roaming
Vodafone international roaming
Sorry - can't link to the specific page but it is easy to find from the home page

information sheets:ISDN, ADSL, cable, broadband and mobile telecoms services availability

features:Choosing a business mobile phone network
Using a mobile phone abroad - 'roaming'

related index entries:MOBILE PHONES


ROUTER
A hardware/software device that acts like a telephone exchange, recognising the addresses of packets of data and routing them over a permanently connected network towards their destination.

external links:Equiinet
Equiinet supply server appliances which make Internet connectivity, the administration of security and control of users easier for non-technical business managers.

information sheets:networking an Internet connection with a router
What is a server appliance - and why do you need one?

related index entries:PACKET SNIFFER




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