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  2. File:RJ9 Handset diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:RJ9_Handset_diagram.svg

    Date/Time Thumbnail Dimensions User Comment; current: 22:16, 3 January 2015: 400 × 132 (18 KB): Kbrose: Corrected the name of the object in the source code. It is not an RJ9 but a 4P4C connector.

  3. Modular connector - Wikipedia

    en.wikipedia.org/wiki/Modular_connector

    The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]

  4. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    telephone set base to handset cord: By de facto standard, this is usually a 4P4C connector. handset cord to handset: The handset end of the straight-through handset cord also uses a 4P4C connector. Some of these may be absent: Wired telephones may not have a separate base and handset.

  5. Registered jack - Wikipedia

    en.wikipedia.org/wiki/Registered_jack

    Four-position, four-contact (4P4C) plug, used for connecting a telephone handset and base Six-position, six-contact (6P6C) jack , which could be wired as RJ11, RJ14, or RJ25335 A registered jack ( RJ ) is a standardized telecommunication network interface for connecting voice and data equipment to a computer service provided by a local exchange ...

  6. Model 302 telephone - Wikipedia

    en.wikipedia.org/wiki/Model_302_telephone

    The model 302 telephone is a desk set telephone that was manufactured in the United States by Western Electric from 1937 until 1955, and by Northern Electric in Canada until the late 1950s, until well after the introduction of the 500-type telephone in 1949. The sets were routinely refurbished into the 1960s.

  7. Western Electric hand telephone sets - Wikipedia

    en.wikipedia.org/wiki/Western_Electric_hand...

    A typical Western Electric hand telephone set of c. 1930. It consists of a handset mounting with the handset held in a cradle, and a subscriber set mounted against a wall or vertical surface in close proximity. Shown is a B1A hand telephone set, also known as the type 102B-3 hand telephone set.

  8. Telephone line - Wikipedia

    en.wikipedia.org/wiki/Telephone_line

    Utility pole with electric lines (top) and telephone cables. Fixed telephone lines per 100 inhabitants, 1997–2007. Cross section of telephone cable of 1,800 twisted pairs, 1922. A telephone line or telephone circuit (or just line or circuit industrywide) is a single-user circuit on a telephone communication system. [1]

  9. British telephone socket - Wikipedia

    en.wikipedia.org/wiki/British_telephone_socket

    These are a recent introduction and do not seem to be easily available as separate parts. All fit any right-handed "Type 600" telephone socket. Type 430A and 630A plugs have the latch on the opposite (left hand) side of the plug, and were used as headset plugs on some switchboards and as handset connectors on some telephones, e.g. Ambassador.

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