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| Down The
Road |
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| Standards
Considerations |
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| • | H.323 nominal
standard for IP telephony |
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| H.323
challenged by many as too “heavyweight” |
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| Rapid evolution of H.323
versions |
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| • | IETF “Session
Initiation Protocol” (SIP) |
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| Advocates see
SIP displacing H.323 |
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| • | Quality of
Service “fits and starts” |
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| QoS solutions
driven by Virtual Private Networks? |
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