The World of Cisco VoIP

When people hear the term Information Technology (IT), they usually forget the magnitude of those two words. IT covers a multitude of topics; therefore, one must consider the depth of study required to master the subject. I recently began learning Voice over Internet Protocol (VoIP), and the level of knowledge necessary to configure VoIP phones may exceed your expectations.

VoIP only comprises one aspect of IT, but some people spend their lives mastering this topic. While configuring a group of phones in a small business environment requires less know-how, setting up a phone system in a large enterprise network takes more training.

The Cisco Unified Communications Manager Express (CME) platform exists as part of Cisco’s Internetwork Operating System (IOS). Newer routers can handle more phones; however, the maximum CME supports remains around 450. Because CME runs on a Cisco router, it turns the device into an all-in-one call processing center. CME works fine for smaller environments, but the Cisco Unified Communications Manager (CUCM) works great when you need a copious number of phones.

CUCM can handle 30,000 phones per cluster, and you can create multiple clusters if needed. While CME runs as part of the IOS, CUCM runs as a separate server appliance. Even though CUCM supports many more phones and features, CME remains a viable option for smaller organizations.

The world of Cisco VoIP can intimidate some people, but with hard work and practice anyone can learn the finer points of Cisco IP telephony. What do you think? Feel free to share your thoughts in the comments section, and remember to follow me on Twitter at:

Check back in a few weeks to learn more about the exciting world of Information Technology.

See you next time.