Perform effective VoIP network capacity planning

Overview Network engineers, analysts and administrators characterize network capacity as the amount of traffic the network is designed to handle. When discussing voice over Internet Protocol (VoIP), network capacity becomes more a measure of how many simultaneous calls the network can process. This concept of "peak load", the maximum assumed volume that the network should be able to handle, will be the basis of your VoIP capacity planning. During your VoIP capacity planning process you should consider the following:

• Your local area network (LAN) and/or wide area network (WAN) design
• Existing data traffic on the network
• The voice codecs your VoIP solution will use
• Connectivity to the Public Switched Telephone Network (PSTN)
• Your network's hardware infrastructure
• VoIP and network redundancy

The document will identify and explain the key steps in VoIP network capacity planning.

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