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  2. Mobile number portability - Wikipedia

    en.wikipedia.org/wiki/Mobile_number_portability

    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.

  3. Add, replace or remove AOL account recovery info - AOL Help

    help.aol.com/articles/add-or-update-aol-account...

    Keep a valid mobile phone number or email address on your account in case you ever lose your password or run into a prompt to verify your account after signing in. We'll also include your recovery email address when sending a notification of changes made to your account. Add a mobile number or email address

  4. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    The HLR will send to the VLR a MAP PRN (Provide Roaming Number) message to obtain the MSRN of the roaming cell phone. Like that the HLR will be able to route the call to the correct MSC. With the IMSI contained in the MAP PRN message, the VLR assigns a temporary number known as the mobile station roaming number (MSRN) to the roaming cell phone.

  5. E.123 - Wikipedia

    en.wikipedia.org/wiki/E.123

    The handset’s directory entry (in the “contact number” field) would contain the actual number of the person to call in case of emergency. [ 5 ] This language-independent recommendation preceded the popular "ICE" (In Case of Emergency) scheme introduced in 2005 to the English-speaking world.

  6. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    For example, a phone number in Arequipa might be written (054) XX-XXXX. Cellphone numbers used to have eight digits with the first digit always being 9. In 2008 an additional digit was added to cellphone numbers, while land numbers remained the same.

  7. Template:Vodafone - Wikipedia

    en.wikipedia.org/wiki/Template:Vodafone

    This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.

  8. Telephone numbers in Turkey - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Turkey

    They must be dialed with 7 digits from any phone (in the country. The number format is 444 XX XX. To dial call center numbers from other countries, the number must be dialed as country code + call center number like 90 444 XX XX. If you dial a call center number with the area code an IVR says you must not use the area code. Dialing procedure:

  9. Vodafone Germany - Wikipedia

    en.wikipedia.org/wiki/Vodafone_Germany

    The company in its present form resulted from Vodafone's takeover of the German engineering group Mannesmann GmbH in 2000. On 8 December 1989, the West German Federal Ministry for Posts and Telecommunications (de; one of several predecessors of the present-day Bundesnetzagentur) awarded the second digital GSM-900 (also known as D-Netz (de; D-Network in Germany) network in Germany to Mannesmann ...