Method for the Synchronization of Media Gateways in an IP Network
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United States of America Patent
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Issued Date -
Sep 27, 2007
app pub date -
Mar 23, 2007
filing date -
Mar 27, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of providing synchronization of the clocks of all of the media gateways of an Ethernet, or equivalent, IP network used in the transmission of audio data between media gateways using a clock provided by the PSTN. The selection of one of the media gateways connected to the PSTN, termed the master CoHub (Central Office Hub), is used as a clock master. This CoHub derives its clock from its TDM-interface's frame-synchronization with the PSTN to which it is connected. Utilizing this gateway-synchronization method, all MG's are synchronized to this PSTN clock-source.
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