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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.
Avaya Application Server 5300 (AS5300), JITC certified ASSIP VoIP; Bicom Systems IP PBX for telecoms; Brekeke PBX, SIP PBX for service providers and enterprises; Cisco SIP Proxy Server, Cisco unified border element (CUBE), Cisco Unified Communication Manager (CUCM) CommuniGate Pro, virtualized PBX for IP Centrex hosting, voicemail services ...
Acme Packet, Inc. [3] was a company based in Bedford, Massachusetts that sold session border controllers (SBCs), multi-service security gateways (MSGs), and session routing proxies (SRPs) to service providers and enterprises.
ADTRAN Expands Session Border Control to Enable Service Providers to Drive Adoption of SIP Trunking Services Increased capacity of NetVanta 4430 and NetVanta 3430 ...
Gatekeepers can be combined with a gateway function to proxy H.323 calls and are sometimes referred to as session border controllers (SBC). A gatekeeper can also deny access or limit the number of simultaneous connections to prevent network congestion.
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Sonus is the fastest growing brand of session border controllers, growing five times faster than the industry average of SBC service provider vendors (source: Infonetics Research)
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]