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Fixed Dialing Number (FDN) is a service mode of a GSM mobile phone's SIM card. [1] Numbers are added to the FDN list, and when activated, FDN restricts outgoing calls to only those numbers listed, or to numbers with certain prefixes. [1] A notable exception is that emergency calls to 000, 112, 911, 999 and the like are exempt. [2]
Hence, mobile phone numbers are written 04AA BB BB BB. Sometimes, the last six digits are written in two groups of 3 digits to increase readability: 04AA BBB BBB. Numbers are sometimes written with a slash in between the zone prefix and the subscriber's number. This is the case for both land lines and mobile phone numbers.
Users can now switch carriers and keep their cell phone numbers, including prefix 89: Telenor (Bulgaria) Users can now switch carriers and keep their cell phone numbers, including prefix 988: Other mobile networks: Users can now switch carriers and keep their cell phone numbers, including prefix Burkina Faso +226: 70: 8: Telmob: 71: 72: 74 ...
Pages in category "Alcatel mobile phones" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. ... Mobile view ...
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.
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.
A stutter dial tone confirms the de-activation. On most European telephone networks, and GSM or UMTS mobile phones, call waiting is activated by dialing the following codes: To activate: *43# To deactivate: #43# To check status: *#43# A voice announcement, tone or a message on your phone's screen will confirm the service status.
Before 2002, the format was 9800-XXXXXX. When the current format was adopted in that year, existing toll-free numbers were given the format 01-800-0XX-XXXX. These numbers were advertised with the grouping 01-8000-XX-XXX, leading many people to erroneously believe that the general prefix for toll-free numbers is 01-8000.