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Vodafone Ltd (along with Telefónica O2 Europe plc, T-Mobile International AG and Orange Personal Communications Services Ltd, Hutchison 3G UK Ltd and the GSM Association) claimed that the Roaming Regulation 717/2007 lacked any legal basis under TEC art 95 (now TFEU art 114 [1]). This capped charges that mobile operators could make for roaming ...
In more technical terms, roaming refers to the ability for a cellular customer to automatically make and receive voice calls, send and receive data, or access other services, including home data services, when travelling outside the geographical coverage area of the home network, by means of using a visited network.
A key technical aspect of Mobile Number Portability (MNP) involves the routing of calls or mobile messages (SMS, MMS) to a number once it has been ported.Various call routing implementations exist globally, but the International and European best practice employs a central database (CDB) of ported numbers.
Call forwarding, or call diversion, is a telephony feature of all telephone switching systems which redirects a telephone call to another destination, which may be, for example, a mobile or another telephone number where the desired called party is available.
Condition 18 requires all providers to provide number portability but only to subscribers of publicly available telephone services who request it. Number portability must be provided as soon as practicable and on reasonable terms to subscribers, and bilateral porting arrangements between providers must accord with agreed processes.
A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.
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Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.