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  2. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    The SMS/800 database and RespOrg structure are used in the U.S. and Canada. A few specific exchanges remain reserved or are assigned to specific North American Numbering Plan countries which do not draw numbers from the SMS/800 pool: Some 800-NXX prefixes are reserved for the following areas: 800-389 for the Bahamas; 800-534 for Barbados; 800 ...

  3. Somos, Inc. - Wikipedia

    en.wikipedia.org/wiki/Somos,_Inc.

    In 2014, SMS/800, Inc., formed a new board of directors, ushering in a new chapter for the company, and the toll-free Industry as a whole. On July 1, 2015, SMS/800, Inc., launched the Texting & Smart Services (TSS) Registry for top-level routing data for toll-free messaging and multimedia services.

  4. RespOrg - Wikipedia

    en.wikipedia.org/wiki/RespOrg

    A RespOrg, or responsible organization, is a company that maintains the registration for individual toll-free telephone numbers in the North American Numbering Plan by means of the distributed Service Management System/800 database.

  5. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. [1] ...

  6. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    The called number was an index into a database, allowing a 'Toll-Free Call' or '800 Call' to be directed anywhere. [7] This feature and other advances that made it possible were what led to AT&T marketing analyst Dodge Cepeda from Bedminster, New Jersey to propose the introduction of providing 800 Toll-Free Service to small and medium-size ...

  7. Directory assistance - Wikipedia

    en.wikipedia.org/wiki/Directory_assistance

    411 LDA: Local Directory Assistance. 411 is dialed, and the operator is requested to search for a listing in a group of area codes local to the caller . Example: the caller lives in area code 630 (Oak Brook, Illinois) and requests a listing for a business in area code 312 (Chicago, Illinois). In this case, AT&T Illinois bills the call.

  8. 1-800-FREE-411 - Wikipedia

    en.wikipedia.org/wiki/1-800-FREE-411

    Callers dial 1-800 (888 or 866)-FREE411 [373-3411] from any phone in the United States to use the toll-free service. Sponsors cover part of the service cost by playing advertising messages during the call. Callers always hear an ad at the beginning of the call, and then another after they have made their request.

  9. SMS gateway - Wikipedia

    en.wikipedia.org/wiki/SMS_gateway

    A direct-to-mobile gateway is a device that has built-in wireless GSM connectivity. It allows SMS text messages to be sent and/or received by email, from Web pages or from other software applications by acquiring a unique identifier from the mobile phone's Subscriber Identity Module, or "SIM card".