MEDIA GATEWAY

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The MG2510 scales from 384 to 2,304 concurrent calls in a 7U chassis.

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The MG3510 scales from 384 to 28,224 concurrent calls in a 12U chassis.

MetaSwitch's Media Gateway products deliver media switching and processing capabilities for voice over IP and time-division-multiplexed (TDM) applications within IP Multimedia Subsystem (IMS) networks.

MetaSwitch offers two Media Gateway models offering low-to-medium and medium-to-high scalability.

• The entry-level MG2510 delivers up to 2,304 concurrent calls in a 7U chassis.
• The flagship MG3510 delivers up to 28,224 concurrent calls in a 12U chassis.

Functions supported by all MetaSwitch Media Gateway models include transcoding, compression, announcements, echo cancellation, silence suppression, comfort noise generation, conference calling, and tone detection/generation over TDM (T1/T3) and packet (Gigabit Ethernet) interfaces. Quality of Service (QoS) mechanisms are also built in for toll-quality voice services.

INDUSTRY LEADING RELIABILITY AND SCALABILITY

The MG2510 and MG3510 share a common hardware architecture, with fully redundant, hot-swappable CPUs, fans, disks and alarm cards. Both systems also integrate a packet-switched multi-gigabit backplane with dual redundant controllers. This handles maximum traffic loads with plenty of bandwidth to spare, and supports Ethernet uplink aggregation for simple deployment of highly scalable VoIP networks.

MetaSwitch led the industry with the introduction of the first "media gateway on a card" to incorporate TDM, ATM and IP interfaces along with the latest generation of field-programmable on-board DSPs. As a result, transcoding and echo cancellation can be supported on every call up to the maximum system capacity - without compromising scalability. In contrast, platforms that require slots dedicated to DSP cards, or which simply do not have sufficient DSP capacity, are unable to effectively reach their advertised maximum capacity, particularly for VoIP applications.

System capacity can be increased on an "as needed basis" with the following media gateway cards.

• PB3100 (16xT1)
• PB4000 (1xDS3, OC-3, GigE)
• PB4500/5000 (3xDS3, GigE)

With these options, a single chassis can scale from 384 to 28,224 concurrent calls - or 112,896 in a single 7' rack.

OPEN INTEROPERABILITY

As fully IMS-compliant network elements, MetaSwitch Media Gateways support H.248, the IMS-defined protocol for trunk gateway control. This enables them to operate under the control of any call agent implementing the IMS media gateway control function (MGCF), including the MetaSwitch CA9000 Series Call Agent.

In addition, MetaSwitch Media Gateways support termination of ISDN-PRI circuits, with IUA (PRI over IP) over SCTP backhaul to the Call Agent.

INDUSTRY'S FIRST COMPLETE EMERGENCY STANDALONE SOLUTION

MetaSwitch's Complete Emergency Standalone (ESA) solution delivers unparalleled protection to subscribers across all major legacy and next-generation access protocols. The ESA capability in MetaSwitch's MG Series media gateways supports highly resilient distributed network architectures by allowing a level of subscriber service to be maintained even after catastrophic events such as high-level network failure or the destruction of a central office.

By offering full protection across the entire range of legacy and VoIP networks, MetaSwitch ESA ensures that your subscribers enjoy uninterrupted service. Whether your subscribers are connected via SIP over a state-of-the art, all IP network, or via a combination of digital and analog access and trunking technologies, MetaSwitch ESA delivers unparalleled protection.

MetaSwitch ESA protects subscribers connected via the following access and signaling technologies:

• GR-303
• MGCP
• H.248
• SIP
• MF
• SS7

INTEGRATED SIGNALING GATEWAY

The MG2500 Series and MG3500 Series Media Gateways also accommodate two or more SG1200 Signaling Gateway cards, allowing you to optionally deploy both Media and Signaling Gateway elements in one chassis.

This reduces deployment complexity and cost where signaling and trunk interfaces are located in the same physical facility, for example in a collocation center.

In a distributed deployment with more than one media gateway, signaling links may be terminated on any combination of the gateways that best fits the SS7 requirements for the network as a whole. In addition, an A-link pair can be split across two gateways (that is, one link terminated in each chassis) for increased physical redundancy, if desired.

MANAGEMENT AND OPERATIONS

All MetaSwitch Media Gateways are fully supported by the MetaView NMS™, allowing configuration via an easy-to-use graphical user interface.