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Media gateway
A
media gateway
is a translation device or service that converts media streams between disparate telecommunications technologies such as
POTS
,
SS7
,
Next Generation Networks
(
2G
,
2.5G
and
3G
radio access networks) or
private branch exchange
(PBX) systems. Media gateways enable
multimedia
communications across packet networks using transport protocols such as
Asynchronous Transfer Mode
(ATM) and
Internet Protocol
(IP).
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