In an effort to enable providers of all types and sizes to deliver converged Internet Protocol (IP
) voice and data services, two network operators are building advanced networks based on the Cisco IP Next Generation Network (IP NGN) architecture featuring Cisco XR 12000 Series Routers.
The new generation of XR 12000 Series comes with the Multi-Service Blade (MSB) for integral, route-aware, firewall and video/voice session border control (SBC) functionality. These innovations build on the platform's highly secure resource virtualization and continuous systems operation to enable the delivery of multiple services over a single, converged IP infrastructure. The MSB is extensible, facilitating return on investment by enabling new service deployment through the more than 35,000 Cisco 12000 Series Routers currently installed in service provider networks.
NEXT Communications has deployed the Cisco XR 12000 platform with integral session border control (SBC) functionality as the basis of its private international network. NEXT provides low-cost SIP-based calling platforms for use in third-world countries, with direct routes in Europe, Africa, and Central and South America.
The integral SBC enables voice and video call access control, helping to ensure that bandwidth is available to support sessions before they begin. It enables per-session control and management of IP multimedia traffic based on widely used protocols such as SIP and H.323.
"This pioneering combination of XR 12000 with the Cisco MGX will help NEXT ensure the highest quality for its VoIP services, and will enable us to grow from 250 million minutes per month to 1 billion minutes per month without increasing our fixed costs," said NEXT CEO Arik Meimoun, in a statement.
"It will also help ensure reliability across long distances, a challenge when interconnecting so many disparate, developing geographies," added NEXT CTO Izik Greenberg.
By integrating SBC functions into Layer 2 and Layer 3 services provided by the XR 12000 Series Routers, TerreStar can simplify its network configuration while allowing greater flexibility. It can also facilitate per-session control and management of IP multimedia traffic based on SIP.
"By combining an all IP mobile communications network with an integrated next-generation satellite and terrestrial system, we plan to significantly enhance the selection of communications options that first responders have at their disposal, and revolutionize how North America stays connected," said Robert H. Brumley, president and CEO of TerreStar, in a statement.
Niladri Sekhar Nath is a contributing writer for TMCnet covering telecommunications, service providers and networking
Don't forget to check out TMCnet’s White Paper (News - Alert) Library, which provides a selection of in-depth information on relevant topics affecting the IP Communications industry. The library offers white papers, case studies and other documents which are free to registered users. Voice over IP (VoIP) | X |
| A real-time communications system that converts voice into digital packets containing media and signaling data that travel over networks using Internet Protocol....more |
Session Initiation Protocol (SIP) | X |
| SIP is the real-time communication protocol for VoIP. SIP is a signaling protocol for Internet conferencing, telephony, presence, events notification (emergency calling) and instant messaging.
SIP...more |
Session Border Controller (SBC) | X |
| According to one end user, "The primary function of the SBC is to serve, basically, as a SIP aware NATing Firewall." Session Controllers or SBC are access devices operating at Layer 5 - Session Layer...more |
Internet Protocol (IP) | X |
| IP stands for Internet Protocol, a data-networking protocol developed throughout the 1980s. It is the established standard protocol for transmitting and receiving data
in packets over the Internet. I...more |
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