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  2. 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] Some vertical service codes require dialing of a telephone number after the code sequence.

  3. Call forwarding - Wikipedia

    en.wikipedia.org/wiki/Call_forwarding

    As of January 2012, Sprint charges 20 cents per minute for unconditional call forwarding; conditional call forwarding is included, however. [4] Some carriers (including Verizon Wireless) use *71 for conditional forwarding although this is not standard. [5] Sometimes, to deactivate call forwarding, *720 will work on cellphones. [citation needed]

  4. Supplementary service codes - Wikipedia

    en.wikipedia.org/wiki/Supplementary_service_codes

    ETSI and 3rd Generation Partnership Project (3GPP) standards, such as GSM and LTE, define supplementary service codes that make it possible to query and set certain service parameters (e.g., call forwarding) directly from mobile devices.

  5. Remote call forwarding - Wikipedia

    en.wikipedia.org/wiki/Remote_call_forwarding

    To activate Remote Access to Call Forwarding, a subscriber calls a provider-supplied Remote Access Directory Number, enters the telephone number of the line to be redirected along with a personal identification number (PIN), a vertical service code (such as 72# or *73) and the number to which the calls are to be forwarded.

  6. Unstructured Supplementary Service Data - Wikipedia

    en.wikipedia.org/wiki/Unstructured_Supplementary...

    USSD on a Sony Ericsson mobile phone (2005). Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.

  7. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    An intermediary machine or process rejected the call attempt. [25] This contrasts with the 607 (Unwanted) SIP response code in which a human, the called party, rejected the call. The intermediary rejecting the call should include a Call-Info header with "purpose" value "jwscard", with the jCard [26] with contact details. The calling party can ...

  8. GSM services - Wikipedia

    en.wikipedia.org/wiki/GSM_services

    Call forwarding. Barring of Outgoing Calls. Barring of Incoming Calls. Advice of Charge (AoC). This GSM service estimates the call cost for display on the user's mobile phone. [1] This helps users by preventing bill shock [2] and reduces the load on the mobile network operator's customer service department. However, in practice, this GSM ...

  9. Jazz Aviation - Wikipedia

    en.wikipedia.org/wiki/Jazz_Aviation

    Jazz operated the CRJ100 series regional jet aircraft from 2004 to 2013 on behalf of Air Canada. The CRJ200 variant was operated until June 2024 British Aerospace 146: Air Canada Jazz previously operated the BAe 146-200, jet aircraft (on behalf of Air Canada) which was inherited from Air Nova and Air BC. They were retired from service in 2005.