I was recently asked about what products NetQoS has to perform the following functions:
- Measure jitter, latency, QoS, and MOS (Mean Opinion Scores) for VoIP traffic
This isn’t a simple answer, but here is a summary I provided that may be useful.
There are different levels of VoIP monitoring…here are the main categories from my point of view:
- Monitoring the performance of the Unified Communications (UC) System itself (i.e. Communications Manager CPU, I/O, Call Handling, Gateway Performance, etc)
- Monitoring the performance of the network through simulated traffic (Cisco IP SLA does this directly in IOS but needs an external application to gather the statistics)
- Monitoring the performance of the network through analysis of the actual VoIP traffic.
- Traffic Analysis: Monitoring VoIP QoS Classification and bandwidth usage.
NetQoS can do all 4, but they require different products within the NetQoS suite.
NetQoS UC Monitor to do #1 and perhaps #3, and NetQoS NetVoyant to do #2.
NetFlow would be able to effectively monitor QoS classification and bandwidth usage (#4). NetQoS ReporterAnalyzer can do this, but NetVoyant will help.
I will expand upon these topics in the future – David