Enterprise VoIP gateway solution is used to implement internal Intranet VoIP business, its core product is the enterprise VoIP gateway, VoIP gateways typical Settings between PSTN and Intranet, it can be time voice and fax information coming from a PSTN line grouping and compression, and will be grouped into IP number according to package sent to the Intranet, and then routed to the destination through a router, this paper mainly focuses on introduction of domestic and international famous manufacturer enterprise VoIP solutions,
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