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  2. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    979 – Universal International Premium Rate Service (UIPRS); (formerly assigned to Abu Dhabi, now part of 971 United Arab Emirates) 98 – Iran. 990 – unassigned. 991 – unassigned (formerly used for International Telecommunications Public Correspondence Service) 992 – Tajikistan.

  3. E.164 - Wikipedia

    en.wikipedia.org/wiki/E.164

    The presentation of a telephone number with the plus sign indicates that the number should be dialed with an international calling prefix, in place of the plus sign. The number is presented starting the country calling code. This is called the globalized format of an E.164 number, and is defined in the Internet Engineering Task Force RFC 2806. [6]

  4. Verification and validation of computer simulation models

    en.wikipedia.org/wiki/Verification_and...

    In the context of computer simulation, verification of a model is the process of confirming that it is correctly implemented with respect to the conceptual model (it matches specifications and assumptions deemed acceptable for the given purpose of application). [1] [4] During verification the model is tested to find and fix errors in the ...

  5. Unified Payments Interface - Wikipedia

    en.wikipedia.org/wiki/Unified_Payments_Interface

    PSP includes banks which have their own mobile application to facilitate transaction and issuers include banks which don't have their own payments interface and rely on third-party software for transactions. On 1 August 2024, RBL Bank announced integration of UPI and National Common Mobility Card capabilities with RuPay credit cards. [66]

  6. Automated teller machine - Wikipedia

    en.wikipedia.org/wiki/Automated_teller_machine

    The most actively developed form of smart card security in the industry today is known as EMV 2000 or EMV 4.x. EMV is widely used in the UK ( Chip and PIN ) and other parts of Europe, but when it is not available in a specific area, ATMs must fall back to using the easy–to–copy magnetic stripe to perform transactions.

  7. Verification and validation - Wikipedia

    en.wikipedia.org/wiki/Verification_and_validation

    Verification and validation. Verification and validation (also abbreviated as V&V) are independent procedures that are used together for checking that a product, service, or system meets requirements and specifications and that it fulfills its intended purpose. [ 1] These are critical components of a quality management system such as ISO 9000.

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

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

    Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. Find out how to add or delete a recovery mobile phone number or alternate email address from your AOL account.

  9. 4+1 architectural view model - Wikipedia

    en.wikipedia.org/wiki/4+1_architectural_view_model

    The four views of the model are logical, development, process and physical view. In addition, selected use cases or scenarios are used to illustrate the architecture serving as the 'plus one' view. Hence, the model contains 4+1 views: [ 1] Logical view: The logical view is concerned with the functionality that the system provides to end-users ...