| ID Number: LE-20-5026 |
Voice over IP: A Layered Look
25 July 2003 Jay E. Pultz Enterprises must view Voice over IP and IP telephony as layers tied to business objectives. While the layers have different technology, vendors and maturity, they are required to deliver full business value.
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As Voice over IP (VoIP) technology enters a different level of maturity, enterprises are faced with the issue of how to best plan to implement VoIP and IP telephony — and where. As an aid here, Gartner has developed the following five-layered model: IP telephony integration with business processes and workflow Advanced IP telephony applications IP telephony VoIP-enabled infrastructure VoIP-capable networks The lower layers provide the enabling network and VoIP infrastructure, while the upper layers include the IP-telephony applications and communications-enabled business processes. Substantial attention has been given to the lower levels in the past; however, what has been missing is a solid understanding of the applications that VoIP and IP telephony support and enhance. Several articles in this Flashlight are devoted to these "missing links" and are discussed in "Creating an Enterprise VoIP and IP-Telephony End-to-End View" It is, of course, the applications and not the technology that will be the real drivers here. So here is our updated look at these critically important areas. Jay Pultz Research Vice President tmmember@gartner.com

| Browse Topics: Voice Systems Computer Telephony Integration |
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Resource Id: 401363