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  2. Source–message–channel–receiver model of communication

    en.wikipedia.org/wiki/Source–message–channel...

    The message has code, content, and treatment as its main factors, each of which can be analyzed based on its elements or based on its structure. Berlo understands the message as a physical product of the source, like a speech, a written letter, or a painting. He holds that the message has three main factors: the code, the content, and the ...

  3. 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 ...

  4. Resource Reservation Protocol - Wikipedia

    en.wikipedia.org/wiki/Resource_Reservation_Protocol

    The Resource Reservation Protocol (RSVP) is a transport layer [1] protocol designed to reserve resources across a network using the integrated services model. RSVP operates over an IPv4 or IPv6 and provides receiver-initiated setup of resource reservations for multicast or unicast data flows.

  5. Encoding/decoding model of communication - Wikipedia

    en.wikipedia.org/wiki/Encoding/decoding_model_of...

    Thus, encoding/decoding is the translation needed for a message to be easily understood. When you decode a message, you extract the meaning of that message in ways to simplify it. Decoding has both verbal and non-verbal forms of communication: Decoding behavior without using words, such as displays of non-verbal communication.

  6. DTMF - Wikipedia

    en.wikipedia.org/wiki/DTMF

    Autovon keypads were one of the few production units to include all 16 DTMF signals. The red keys in the fourth column produce the A, B, C, and D DTMF events. Before the development of DTMF, telephone numbers were dialed by users with a loop-disconnect (LD) signaling, more commonly known as pulse dialing (dial pulse, DP) in the United States.

  7. Specific Area Message Encoding - Wikipedia

    en.wikipedia.org/wiki/Specific_Area_Message_Encoding

    Specific Area Message Encoding (SAME) is a protocol used for framing and classification of broadcasting emergency warning messages. It was developed by the United States National Weather Service for use on its NOAA Weather Radio (NWR) network, and was later adopted by the Federal Communications Commission for the Emergency Alert System, then subsequently by Environment Canada for use on its ...

  8. RSVP-TE - Wikipedia

    en.wikipedia.org/wiki/RSVP-TE

    Operational overhead of RSVP-TE compared to the more widely deployed Label Distribution Protocol (LDP) will generally be higher. This is a classic trade-off between complexity and optimality in the use of technologies in telecommunications networks .

  9. RSVP - Wikipedia

    en.wikipedia.org/wiki/RSVP

    RSVP is an initialism derived from the French phrase "Répondez s'il vous plaît", [1] meaning "Please respond" (literally "Respond, if it please you"), to require confirmation of an invitation. The initialism "RSVP" is no longer used much in France, where it is considered formal and old-fashioned.