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The IP multimedia core network subsystem is a collection of different functions, linked by standardized interfaces, which grouped form one IMS administrative network. [7] A function is not a node (hardware box): An implementer is free to combine two functions in one node, or to split a single function into two or more nodes.
The Session Initiation Protocol ( SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. [1] SIP is used in Internet telephony, in private IP telephone systems, as well as mobile phone calling over LTE ( VoLTE ). [2]
In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource. [1] It improves privacy, security, and performance in the process. Instead of connecting directly to a server that can fulfill a request for a resource, such as a file or web ...
v. t. e. The Dynamic Host Configuration Protocol ( DHCP) is a network management protocol used on Internet Protocol (IP) networks for automatically assigning IP addresses and other communication parameters to devices connected to the network using a client–server architecture. [1]
3Com VCX IP telephony module: back-to-back user agent SIP PBX. 3CX Phone System, for Windows, Debian 8 GNU/Linux. Aastra 5000, 800, MX-ONE. Alcatel-Lucent 5060 IP Call server. Aricent SIP UA stack, B2BUA, proxy, VoLTE/RCS Client. AskoziaPBX. Avaya Application Server 5300 (AS5300), JITC certified ASSIP VoIP.
Voice over Internet Protocol ( VoIP [a] ), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, [2] such as the Internet. The broader terms Internet telephony, broadband telephony, and broadband phone service specifically refer to ...
web .mit .edu /kerberos /. Kerberos ( / ˈkɜːrbərɒs /) is a computer-network authentication protocol that works on the basis of tickets to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner. Its designers aimed it primarily at a client–server model, and it provides mutual ...
An IP PBX (" Internet Protocol private branch exchange ") is a system that connects telephone extensions to the public switched telephone network (PSTN) and provides internal communication for a business. An IP PBX is a PBX system with IP connectivity and may provide additional audio, video, or instant messaging communication utilizing the TCP ...