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  2. Selective calling - Wikipedia

    en.wikipedia.org/wiki/Selective_calling

    Selective calling features fit into two major categories—individual calling and group calling. Individual calls generally have longer time-constants: it takes more air-time to call an individual radio unit than to call a large group of radios. Selective calling is akin to the use of a lock on a door. A radio with carrier squelch is unlocked ...

  3. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    Call forward: Cancel *74 1174 Speed calling (8 numbers) *75 1175 Speed calling (30 numbers) *77 1177 Anonymous call rejection activation *78 1178 Do not disturb *79 1179 Do not disturb disable *80 1180 Call blocking disable *81 1181 Priority call disable *82 1182 Caller ID (per call) *31#/1832 [11] 1470 *83 1183 Selective call forwarding ...

  4. Selcall - Wikipedia

    en.wikipedia.org/wiki/Selcall

    Selcall (selective calling) is a type of squelch protocol used in radio communications systems, in which transmissions include a brief burst of sequential audio tones. . Receivers that are set to respond to the transmitted tone sequence will open their squelch, while others will remain

  5. SELCAL - Wikipedia

    en.wikipedia.org/wiki/SELCAL

    In international aviation, SELCAL or SelCal is a selective-calling radio system that can alert an aircraft's crew that a ground radio station wishes to communicate with the aircraft. SELCAL uses a ground-based encoder and radio transmitter to broadcast an audio signal that is picked up by a decoder and radio receiver on an aircraft.

  6. CCIR (selcall) - Wikipedia

    en.wikipedia.org/wiki/CCIR_(selcall)

    One common type of CCIR selcall used in VHF and UHF FM two-way radio communications, is a 5-tone selective calling system mainly found in some European countries and used by the Swedish Police and the Turkish Police. The tone duration of a 5 tone CCIR selcall is 100 milliseconds (± 10 ms) and the tones are transmitted sequentially.

  7. Synchrony Financial (SYF) Q4 2024 Earnings Call Transcript - AOL

    www.aol.com/finance/synchrony-financial-syf-q4...

    Image source: The Motley Fool. Synchrony Financial (NYSE: SYF) Q4 2024 Earnings Call Jan 28, 2025, 8:00 a.m. ET. Contents: Prepared Remarks. Questions and Answers. Call Participants

  8. House Passes Bill To Automatically Register Young Men ... - AOL

    www.aol.com/news/house-passes-bill-automatically...

    The Selective Service System was first founded in 1917 to feed bodies into America's World War I efforts. It was disbanded in 1920, fired back up in 1940, re-formatted in 1948, and then terminated ...

  9. MDC-1200 - Wikipedia

    en.wikipedia.org/wiki/MDC-1200

    Vertex Standard manufactures OEM add-on boards for their mobile and portable Land Mobile Radios that support MDC-1200 ANI (or PTT ID). Icom Incorporated includes built-in MDC-1200 features on some of their newer radios including the IC-F3021/4021 portables and IC-F1721/1821 mobiles, as does Kenwood Electronics .