QoS for VoIP: Over the Internet or WAN

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Provided by: Simwood eSMS
Topic: Networking
Format: PDF
QoS (Quality of Service) is a term used in VoIP circles but often misunderstood and as a consequence rarely implemented, despite the best of intentions. Depending on the networks involved in handling the user' VoIP traffic and in particular the RTP audio element of calls it can make the difference between a better-than-PSTN experience and VoIP being unusable. In this paper, the authors attempt to clarify some misunderstanding in technically minimal terms and give the user a practical paper to ensure they are doing what they can to implement QoS, or at least understanding where the users' efforts are fruitless and why. They concern themselves with SIP and RTP here rather than other flavors of VoIP but the principles are fundamentally the same.
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