Why monitor VoIP ?

VoIP stands for Voice-over-IP protocol, where in voice traffic is transmitted on converged data

networks, instead of on traditional PSTN networks.


Usually, data networks are deployed first and VoIP is deployed much later, as an after-thought on the

same data networks. Data networks are not architected or build up for VoIP deployment.


VoIP networks have stringent QoS requirements like latency, packet-loss, jitter etc. to avoid dropped

calls, garbled voices etc. For traditional data networks, QoS requirements are not too stringent. Because

of different QoS requirements for VoIP networks, VoIP networks should be architected differently,

compared to data networks.


With the converged infrastructure, wherein data and VoIP traffic are deployed on single network, it is

very important that QoS parameters are provisioned and monitored to ensure Quality for VoIP calls.

With overloaded data and VoIP traffic on the unified, continuously changing dynamic network, it is

critical to continuously monitor, manage, alert and remedy the ongoing changes in QoS parameters and

Network infrastructure. It is also important to properly provision and capacity planning for your

converged unified infrastructure to accommodate the continuous network changes (Ex: New iPhones,

iPads added/removed continuously) by continuously monitoring your network infrastructure.


Avaya and Cisco are leading VoIP vendors. Foglight NMS added support to monitor Avaya VoIP

infrastructure with 6.2 build. Foglight NMS can monitor all QoS parameters, generate alerts and

do troubleshooting of your converged IT infrastructure.


Quest Foglight NMS is FREE to monitor upto 100 devices. Visit https://www.quest.com/ to

DOWNLOAD for Free.