The difference is this: Voice over IP means just that, voice packetized to run over IP. This could be an IP phone, or an analog phone connected to an FXS port on a router, or even two voice gateways that provide toll bypass between 2 geographically seperate traditional PBX's. THe only defining characteristic is that, at some point, the voice is split up, put in IP packets and transported over an IP network.
Now, IP Telephony is VoIP, but it means more than just that. Kinda like every square is a rectangle, but not all rectangles are squares. IP Telephony means that at least one end of the conversation is terminated on an IP device, such as an IP phone. This implies that the various features common to modern phones are provided by the IP system, like hold, transfer, park, call forward, etc. VoIP does not define these services. Hope this helps. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=52797&t=52688 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]