Application Example: Media Gateway

Overview

Media gateways perform a critical function in enabling VoIP services by processing bearer traffic between the PSTN and an IP network. Media gateways process full-duplex voice, fax and data modem calls by performing sophisticated voice coding, modulation, echo cancellation and jitter management algorithms as well as standards-based IP protocols and real-time protocols such as RTP and T.38. Media gateways sit on the edge of IP networks and provide the "on-ramp" for TDM traffic onto the IP network and vice versa.

Media gateways are often called upon to provide media server functionality such as announcements, conferencing and wiretapping. In addition, the function of a signaling gateway is often integrated into a media gateway. Signaling gateways transport PSTN call control signaling, whether it be ISDN, CAS or SS7 across an IP network to a softswitch.

What products do we provide for this application?

Our Advanced Managed Platform™ is an ideal foundation for building a Media Gateway. This platform configuration includes:

Packet-based Platforms: Bundled with the industry's broadest line of 10/100 and Gigabit Ethernet switches, comprehensive shelf management and high-density power supplies, these platforms give equipment manufacturers and system integrators the basis to go beyond five-nines availability while handling the high-performance computing requirements of next-generation, packet-based systems.

Single Board Computers: High-performance, standards-based application processors designed for carrier-grade telecom and Internet applications requiring exceptional processing power and high availability.

Embedded Ethernet Switches: PICMG 2.16®-compliant, that provide increased bandwidth, performance and reliability in high availability applications such as defense, IP telephony and broadband. These switches have been designed to make system integration easier, while maximizing network performance and flexibility.

Media Gateway Blades: Enable OEM solutions such as VoIP trunking gateways, access gateways, next-generation digital loop carriers, wireless gateways, media servers and remote access concentrators.