Video Conferencing Over IP: Configure, Secure, and Troubleshoot

Selecting a computer or dedicated video telephone device, or both, is something you will need to consider. To help with that decision, we have provided some information to assist you in making an informed decision. Whatever your choice, keep in mind the same solution, or a solution that is compatible, must be installed at each location where you want to have a video call. Just remember you need two of everything.
| Note | You will see the use of v ideo telephone or videophone in this chapter. They are all the same and interchangeable. If you want to separate the terms, use video telephone to describe a device that looks like a traditional telephone with a video screen and videophone to describe units that do not look like a telephone. |
We can t talk about voice and video without discussing a bit about the protocols that are used to make video and audio calls. Think of protocols as the language the solutions use to speak to one another. These protocols are important because if two solutions use the same protocols, they might be able to communicate with one another. The other factor is how the solution initiates the call. For example the DLink and Black Crow videophones use the system s IP address to initiate a call to another device or solution somewhere on the Internet by its IP address. All you need to know is your family s or friend s...