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  2. Ringer equivalence number - Wikipedia

    en.wikipedia.org/wiki/Ringer_equivalence_number

    The ringer equivalence number (REN) is a telecommunications measure that represents the electrical loading effect of a telephone ringer on a telephone line.In the United States, ringer equivalence was first defined by U.S. Code of Federal Regulations, Title 47, Part 68, based on the load that a standard Bell System model 500 telephone represented, and was later determined in accordance with ...

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

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

    Toll-free telephone numbers in the North American Numbering Plan. Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing ...

  4. Ringback number - Wikipedia

    en.wikipedia.org/wiki/Ringback_number

    Ringback number. A ringback number is a telephone number for a telephone line that automatically calls the line that the call was placed from, after the caller has hung up. The typical use of this facility is by telephone company technicians for testing a new installation or for trouble-shooting. [1]

  5. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    These numbers are called número 800 (800 number). These numbers cannot be accessed from abroad. In Colombia, toll-free numbers start with "018000". In Croatia, the prefix for toll-free numbers is "0800". In the Czech Republic, the toll-free prefix is "800". [17] In Denmark telephone-numbers have eight digits. The toll-free numbers all begin ...

  6. Contact AOL customer support

    help.aol.com/articles/account-management...

    GET. Mail. Call live aol support at. 1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more.

  7. Ringing tone - Wikipedia

    en.wikipedia.org/wiki/Ringing_tone

    Ringing tone (audible ringing, also ringback tone) is a signaling tone in telecommunication that is heard by the originator of a telephone call while the destination terminal is alerting the receiving party. The tone is typically a repeated cadence similar to a traditional power ringing signal (ringtone), but is usually not played synchronously.

  8. Party line (telephony) - Wikipedia

    en.wikipedia.org/wiki/Party_line_(telephony)

    If one of the parties used the phone heavily, then the inconvenience for the others was more than occasional, as depicted in the 1959 comedy film Pillow Talk. [45] Dialing one's own number and hanging up would make all phones on the network ring, resulting in the residents on the system (sometimes a half a dozen or more) all answering the phone ...

  9. Phoneword - Wikipedia

    en.wikipedia.org/wiki/Phoneword

    Phonewords are the most common vanity numbers, although a few all-numeric vanity phone numbers are used. Toll-free telephone numbers are often branded using phonewords; some firms use easily memorable vanity telephone numbers like 1-800 Contacts, 1-800-Flowers, 1-866-RING-RING, or 1-800-GOT-JUNK? as brands for flagship products or names for ...