Crash Course: VoIP

DEFINITION

VoIP (voice over IP - that is, voice delivered using the Internet Protocol) is a term used in IP telephony for a set of facilities for managing the delivery of voice information using the Internet Protocol (IP). In general, this means sending voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public switched telephone network (PSTN). A major advantage of VoIP and Internet telephony is that it avoids the tolls charged by ordinary telephone service.

Read the full definition here, courtesy of Whatis.com.

TIPS

Preparing for VoIP
Voice over IP is coming. What can you do to prepare your existing network in the meantime?

VoIP training redux
Some recommendations for learning the ins and outs of IP telephony.

VoIP user experience questionnaire
VoIP user experience questionnaire

Tips for choosing a telephony system for the SMB
The process of choosing an IP telephony system can seem daunting but here's some help.

Online! The Book - Chapter 28: Voice over Internet Protocol
This chapter details the history of VoIP, describes how it works, the requirements, as well as the goals and benefits of VoIP.

First things first with VoIP
What you need from the get-go.

The essential VoIP bookshelf -- II
Listing of books on the topic.

Read more VoIP-related tips here.

ASK THE EXPERTS

Understanding VoIP
Expert response: In general, this means sending voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public switched telephone network (PSTN)...

What is the difference between IP telephony and voice over IP (VoIP)?
Expert response: IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice...

Ask our experts your VoIP-related questions and view previously answered Q&As.

WHITE PAPERS

Voice-Enabling the Data Network, Chapter 4
This chapter focuses on how carriers are using VoIP to bundle voice and data services over a single access link to the customer. For example, traditional T1 circuits that are offered to customers to interconnect their private branch exchange PBX to interexchange carriers can now be used instead for integrated voice and data traffic, eliminating the need for multiple access links between the customer and the service provider.

Read more VoIP-related white papers here.

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