A MG terminates switched circuit network (SCN) facilities (trunks, loops), packetizes the media stream, if it is not already packetized, and delivers packetized traffic to the packet network. It performs these functions in the reverse order for media streams flowing from the packet network to the SCN.
A generic class of products grouped under the Media Gateway Control Protocol (MGCP). A major function of the media gateway is simple IP/TDM conversion under the control of a softswitch. Media gateways include, but are not limited to, the following types of equipment: standalone, server-based gateways, RAS-based gateways, gateway switches, traditional CO switches, and ATM switches.
Network device for converting media streams from one form to another, such as converting voice from a DS0 stream to RTP/UDP/IP packets.
a network element that provides conversion between the audio signals carried on telephone circuits and data packets carried over the Internet or over other packet networks
Provides the bearer circuit interfaces to the PSTN and transcodes the media stream. A PacketCable term for device that allows for the flow of IP voice traffic onto the PSTN (circuit-switch), and back again.
Equipment that provides call handling between the PSTN or a PBX and a VoIP network or an NAS. The Media Gateway is controlled by a Call Agent via MGCP.
A media gateway is an IETF and MGCP concept. It is a device that converts one form of media into another form, for example, PSTN voice into VoIP, and has very little intelligence.
The interface between circuit-switched networks and the IP network.
Communications switch equipment operating at the edge of multi-service packet networks.
Any device, such as a circuit-switched or IP gateway that converts data from the format required for one type of network to the format required for another. As defined in the Internet Engineering Task Force (IETF), a media gateway might terminate channels from a circuit-switched network as well as streaming media from a packet-switched network. Data input could be audio, video, or real-time multi-point communications, which the media gateway would handle simultaneously. The media gateway controller is sometimes called a softswitch.
Equipment that connects the PSTN or a PBX with the VoIP network. It is controlled by a call agent via MGCP.
A network element that performs the physical conversion from circuit to packet
A device that provides seamless interoperability between circuit-switched, or PSTN, networking domains and those of the packet-switched realm (that is, IP, ATM, and Frame Relay networks). It interconnects with the SS7 network and enables the handling of IP services.
A Media Gateway acts as a translation unit between disparate telecommunications networks such as PSTN; Next Generation Networks; 2 G, 2.5 G and 3 G radio access networks or PBX. Media Gateways enable multimedia communications across Next Generation Networks over multiple transport protocols such as ATM and IP.
