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Asynchronous Transfer Mode

Asynchronous Transfer Mode (ATM) is an international ISDN high speed, high volume, packet switching transmission protocol standard that uses virtual circuit-switching technology, as well. It improves on the capabilities of Frame Relay, and offers up to 622 Mbit/s interfaces. ATM is capable of transporting efficiently a combination of voice, vide, and data. It is the only mature QoS packet based technology that has been developed from the ground up to carry both voice and data.

ATM is currently deployed most often as a connection-oriented layer 2 WAN backbone transport technology. ATM was also envisioned as an ideal technology to maintain QoS in a LAN environment, but less expensive Ethernet has been adopted on a wider scale in LAN environments. ATM can now be found in WANs as ISP transport technology and in large corporate campus environments as backbone LAN interconnect technology.

Follow these guidelines when implementing G700 Media Gateways in an ATM environment:


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