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  2. Call forwarding - Wikipedia

    en.wikipedia.org/wiki/Call_forwarding

    Call forwarding is often enabled by dialing *72 followed by the telephone number to which calls should be forwarded. Once someone answers, call forwarding is in effect. If no one answers or the line is busy, the dialing sequence must be repeated to effect call forwarding. Call forwarding is disabled by dialing *73.

  3. Remote call forwarding - Wikipedia

    en.wikipedia.org/wiki/Remote_call_forwarding

    Remote call forwarding is also a means for a suburban business to obtain a city-centre local number (with its full large-city coverage area) for inbound calls; while cheaper than a foreign exchange line, this can reduce long-distance telephony costs in markets where local calls are flat-rated but trunk calls are expensive.

  4. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    A vertical service code (VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1]

  5. Routing in the PSTN - Wikipedia

    en.wikipedia.org/wiki/Routing_in_the_PSTN

    Each time a call is placed for routing, the destination number (also known as the called party) is entered by the calling party into their terminal. The destination number generally has two parts, an area code which generally identifies the geographical location of the destination telephone, and a telephone number unique within that area code that determines the specific destination terminal.

  6. Local number portability - Wikipedia

    en.wikipedia.org/wiki/Local_number_portability

    Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...

  7. Still love your landline? Phone service providers are getting ...

    www.aol.com/finance/still-love-landline-phone...

    More people who are still using telephone landlines will soon need to decide if they want to finally hang up on their service. Just last week, AT&T applied for a waiver that would allow it to stop ...

  8. Call waiting - Wikipedia

    en.wikipedia.org/wiki/Call_waiting

    With some providers it can be combined with additional features such as conferencing, call forwarding, and caller ID. Call waiting is intended to alleviate the need to have more than one telephone line or number for voice communications.

  9. Operator assistance - Wikipedia

    en.wikipedia.org/wiki/Operator_assistance

    Operator assistance refers to service provided by a telephone operator to the calling party of a telephone call.This can include telephone calls made from pay phones, calls placed station-to-station, person-to-person, or collect, third-number calls, calls billed to credit cards, and certain international calls which cannot be dialed directly.