ISI Collateral Material

Optimizing the Communications Architecture: Calculating SIP Bandwidth With Infortel Select Reporting

In the past, well worn methods of traffic engineering were used to plan voice networks. Calculations such as Erlang B and Erlang C ruled the day. Since T1’s were used, companies typically added circuits in blocks of 24.SIP changes all this. The key metric of SIP traffic engineering is the number of concurrent calls needed. This not only equates to the way the service providers bill for PSTN SIP circuits, it relates directly to bandwidth required.

To properly engineer the network at each phase of the deployment, you need to calculate the number of concurrent voice channels needed. These calculations must be made for both on-net and PSTN calling. Many companies simplify this by guessing.

Learn more about why Infortel Select from ISI Telemanagement Solutions is the ideal tool to help companies make these critical calculations in order to properly calculate their SIP bandwidth requirements.

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