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    VOIPs and Wireless Networks

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    I need assitance with question A and question B. Question C has to be in great detail where I can use a a guide to form a comprehensive report. please pr reference will greatly be appreciated.

    (A) Discuss what protocols are commonly used to implement VOIP?
    (B) Are all VOIP protocols compatible with one another?
    C) Advantages and disadvantages of wireless networks

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    https://brainmass.com/computer-science/integrated-circuits/voips-wireless-networks-297621

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    (A) Discuss what protocols are commonly used to implement VOIP?
    VoIP, Voice over Internet Protocol, has been executed in several way methods by utilizing both proprietary and open protocols standards. There are five technologies that are currently used to implement VoIP:
    - H.323 is a standard approved in 1996 by the ITU, International Telecommunications Union for support in videoconference transmissions over IP networks. H.323 is a standard that provides consistency in audio, video, and data packets. H.323 addresses call control and management for ptp, point-to-point, and multipoint conferences, administration of media traffic, user participation, and bandwidth (H.323, 2006).
    - IP Multimedia Subsystem, also known as IMS, is a model of integrated network of telecommunications carriers that use IP for packet communications in all forms over a wireless network or a landline. Examples of IMS are traditional telephones, fax, Internet access, web services, VoIP, e-mail, instant messaging, and videoconferencing (IMS, 2007). IMS originally was designed to deploy mobile telecommunication networks that would interface with PSTN, public switched telephone networks. IMS has not met with great success because individuals and businesses frequently change wireless carrier which denies the advantage that IMS brings: one union or junction.
    - MGCP, Media Gateway Control Protocol, also known as H.248 and Megaco, is a standard protocol for handling the signaling and session management that is required during a multimedia conference. MGCP defines the means of communication between the media gateway and the media gateway controller. The media gateway converts data from the circuit-switched network to the format of a packet-switched network. MGCP can set up, maintain, and terminate calls between numerous endpoints.
    MGCP was created from two protocols: IDPC (Internet Protocol Device Control) and SGCP (Simple Gateway Control Protocol). MGCP identifies a protocol at the Application Layer (OSI Model) level in which the media gateway controller is the master (MGCP, ...

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