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Introduction
The industry has decided: SIP, the Session Initiation Protocol, is the signaling standard for all IP-based real-time communication and collaboration. Most voice over IP (VoIP) softswitches, IP PBXes, application servers, and enterprise collaboration platforms already support SIP, and the few that do not, will soon. The IP Multimedia Subsystem (IMS), which is the framework for fixed and mobile real-time services, specifies SIP for both internal and external signaling.
Still, significant challenges remain before SIP services can be deployed to the mass consumer market or for business-critical enterprise use. Chief among these challenges are securing, controlling, managing and scaling real-time services at the access edge—the point at which enterprise networks and individual consumers attach to the service provider infrastructure.
The Peering Edge
The first phase of VoIP has been reached as carriers worldwide have replaced, or augmented, their traditional TDM transport networks and Class 4 switches with more economical IP transport and softswitches. As a result a large percentage of long distance voice transport now relies on IP.
Today’s VoIP peering service architecture depends on Session Border Controllers (SBCs) to manage peering between service providers. SBCs make IP-to-IP interconnect safe and practical for the service provider but do little for the end customer, especially the business customer.
The Peering Edge
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The Access Edge
In the next phase of the evolution of real-time communications—a phase that many service providers have already begun— IP-based real-time services reach all the way to end users, creating a variety of new user experiences. Service portfolios expand beyond voice telephony to include video, messaging and other presence-enabled applications—often in use all at once—over “toll-quality” connections.
The Access Edge
"As organizations grow their real-time applications, they find that scaling, managing and controlling the access edge poses its own special set of challenges and unique requirements.”
Tom Valovic Program Director for VoIP Infrastructure at IDC
Learn more about the unique reqiurements of the real-time access edge by clicking on any of the links below.
Scaling access: The Covergence Session Manager (CSM)terminates hundreds-of-thousands to millions of SIP/UDP, SIP/TCP, TLS, RTP and SRTP connections. Eclipse is also designed to maximize connections per/sec, calls per/sec, total endpoints, registrations/per sec, and registration floods.
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Scaling registrations: The CSM Stateful Registration Architecture offloads SIP application servers from this load and ensures that registration processing is handled without sacrificing the performance or quality of the user experience.
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Scaling security: The CSM was designed from the ground up to provide total security and its patent-pending parallel-processing, dual-stage architecture ensures comprehensive security - encrypted, validated and authenticated connections and total perimeter security - without losses in performance or quality.
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Ensuring interoperability: CSM overcomes the differences in SIP dialects that are so common today. The Eclipse protocol normalization capability ensures interoperability across the broadest range of endpoints and applications.
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IMS and ETSI TISPAN
The IMS architecture, defined by 3GPP and extended by ETSI TISPAN, recognizes this difference and has defined two types of SBCs; the access-edge SBC and the peering SBC. The access-edge SBC connects users to real-time services while peering SBCs connects provider networks.
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Eclipse – The Access Edge
CSM meets the challenges at the access edge. By combining traditional border control with comprehensive security and powerful management and control capability, Eclipse delivers a single point of security, management and control for all real-time services.
With Eclipse, providers can now deliver "business-grade" VoIP, IM, video, messaging and other presence-enabled applications to enterprise customers - today.
If your access-edge is limiting your opportunity, look into CSM and see what the market leaders already know.
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