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Support for multiple VoIP accounts – the phone may register with more than one VoIP server/provider. Accounts are usually set and memorized on the phone itself. A more sophisticated feature is dynamic download of account settings, also known as "extension mobility". This feature allows settings stored on a server to be downloaded to the phone ...
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
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.
The Real-time Transport Protocol (RTP) is a network protocol for delivering audio and video over IP networks. RTP is used in communication and entertainment systems that involve streaming media , such as telephony , video teleconference applications including WebRTC , television services and web-based push-to-talk features.
FreeSWITCH is a free and open-source telephony software for real-time communication protocols using audio, video, text and other forms of media. The software has applications in WebRTC, voice over Internet Protocol (VoIP), video transcoding, Multipoint Control Unit (MCU) functionality and supports Session Initiation Protocol (SIP) features.
Skype uses random numbers for several cryptographic purposes. Purposes include protection against playback attacks, creation of RSA key pairs, and creation of AES key-halves for content encryption. The security of a Skype peer-to-peer session depends significantly on the quality of the random numbers generated by both ends of the Skype session ...