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  2. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    Security – Implementing access control, verifying the identity of other participants (computers or people), and encrypting data to protect the privacy and integrity of the media contents and/or the control messages. VoIP protocols include: Matrix, open standard for online chat, voice over IP, and videotelephony

  3. VoIP VPN - Wikipedia

    en.wikipedia.org/wiki/VoIP_VPN

    A VoIP VPN combines voice over IP and virtual private network technologies to offer a method for delivering secure voice.Because VoIP transmits digitized voice as a stream of data, the VoIP VPN solution accomplishes voice encryption quite simply, applying standard data-encryption mechanisms inherently available in the collection of protocols used to implement a VPN.

  4. H.323 - Wikipedia

    en.wikipedia.org/wiki/H.323

    H.323 is a system specification that describes the use of several ITU-T and IETF protocols. The protocols that comprise the core of almost any H.323 system are: [8] H.225.0 Registration, Admission and Status (RAS), which is used between an H.323 endpoint and a Gatekeeper to provide address resolution and admission control services.

  5. The Benefits of VoIP Phone Systems - AOL

    www.aol.com/benefits-voip-phone-systems...

    Over 30% of U.S. companies use Voice over Internet Protocol (VoIP) phone systems. Many switch from conventional services to realize the benefits of VoIP, including lower costs, operational ...

  6. ZRTP - Wikipedia

    en.wikipedia.org/wiki/ZRTP

    ZRTP (composed of Z and Real-time Transport Protocol) is a cryptographic key-agreement protocol to negotiate the keys for encryption between two end points in a Voice over IP (VoIP) phone telephony call based on the Real-time Transport Protocol. It uses Diffie–Hellman key exchange and the Secure Real-time Transport Protocol (SRTP

  7. VoIP vulnerabilities - Wikipedia

    en.wikipedia.org/wiki/VoIP_vulnerabilities

    VoIP vulnerabilities are weaknesses in the VoIP protocol or its implementations that expose users to privacy violations and other problems. VoIP is a group of technologies that enable voice calls online. VoIP contains similar vulnerabilities to those of other internet use. Risks are not usually mentioned to potential customers. [1]

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