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3CX was founded by Nick Galea in 2005. In 2006, 3CX released the 3CX Phone System as a free IP PBX for use in a Microsoft Windows environment. [1] The phone system's first commercial edition, v6.0, was released a year later in 2007. Reviews of the product have noted its easy configuration, management, and hardware compatibility. [2] [3] [4] [5]
SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. [1]
As of Elastix 5.0 all functionality is provided through 3CX, a software based private branch exchange (PBX) based on the SIP (Session Initiation Protocol) standard. It enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services. Elastix 5.0 is an IP business phone system ...
Intertex SIP transparent routers, firewalls and ADSL modems, for broadband deployments and SOHO market; Juniper Networks Netscreen and SRX firewalls include complete SIP Application Layer Gateway support; Linux Netfilter's SIP conntrack helper fully understands SIP and can classify (for QOS) and NAT all related traffic; Netopia Netopia supports ALG
A SIP provider (Session Initiation Protocol) is any telecommunications company which provides SIP trunking to customers, usually businesses. Many companies provide SIP "termination" (outbound calling) and "origination" (inbound calling, usually with a plain old telephone service (POTS) phone number, called a direct inward dialing (DID).
A session border controller (SBC) is a network element deployed to protect SIP based voice over Internet Protocol (VoIP) networks. [1]Early deployments of SBCs were focused on the borders between two service provider networks in a peering environment.
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 . [2]
As IP PBX is software, functions and features can be designed based on the customers' requirements such as conference calling, XML-RPC control of live calls, interactive voice response (IVR), TTS/ASR (text to speech/automatic speech recognition), PSTN interconnectability supporting both analog and digital circuits, VoIP protocols including SIP ...
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