Montrose
Some careful analysis of cost-related issues will help keep VoIP implementation free from unpleasant financial surprises.
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MEGACO is functionally equivalent to the MGCP. Why create two protocols that do the same thing? This one works with more types of underlying transport.
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Skype is a software application that can be used to make phone calls over the Internet. The service is free when calls are made to and from Skype users on their PCs and it can also be used to make phone calls to landlines and cell phone numbers for a fee.
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Like HTTP, SIP operation is based on a request/response model. Like SMTP, each SIP message is headed by an email-address-like identifier. A series of methods and Status Codes specify purposes and procedures.
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The Differentiated Services architecture is a built-in feature of the Internet protocol that allows the coding of traffic streams for special treatment.
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Due to its connectionless architecture, an IP network creates its own built-in obstacles to the smooth transmission of sequential data such as voice and video.
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The Media Gateway Controller is in the logical portion of the softswitch architecture; the Media Gateway, the physical. Allowing the former to talk to the latter are two protocols; we'll examine one.
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This mother of all QoS solutions tracks flows, schedules packets, and generally manages network resources to ensure adequate bandwidth for the services running at any given time.
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Despite its status as a standard, some compatability problems exist for SIP. Fortunately for IT managers, a number of resources exist for testing a resolving these issues.
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New survey reveals that VoIP performance monitoring (not surprisingly) is critical to the success of VoIP deployment.
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