IT Leadership: VOIP Installation

Qos for Video Conferencing:

The first step to set up VOIP was to log into the switch via telnet and run the following 5 commands. These commands enable QOS.

Without QOS enabled, you would get freezing and delay while using video conferencing or VOIP applications. . There is no QOS on the internet.

After QOS was set up, we needed to run the software for VOIP as well as a "sniffing" application to ensure we were using the Gold QOS setting.
We downloaded and installed both the Xlite (VOIP) and Wireshark (sniffing) software .
We made the following settings on our Xlite after it was installed:
a. PBX Domain for Xlite -->192.168.181.251
b. User id 6010
c. Password 112233
e. unselect the domain proxy
f. On the Xlite menu we went to preferences/Network and selected LAN

Our task was to call Lyle. This meant we simply had to enter 6000 in the dial number box.

Our next step was to install Wireshark inorder to look at traffic created by the VOIP.
We were to specifically look for DSCP settings which should be 46 across the Supernet for UDP VC or VOIP traffic.

We soon discovered that the default setting on the Xlite was not set to 46. Inorder to make this change, we went back to the Xlite software and made the following change: preferences/QOS/select Audio QOS/use dscp/Tos value and the default is 46

Chinook High

Our tour of Chinook High was a bit of a disappointment to me. I guess I was expecting to see more technology installed throughout the school (and it may very well be, but we didn't get to see that part). The theatre was a well thought out and a great deal of money was spent there. We have something similar, as we also have an infrastructure grant. Our setup is just a smaller scale. We have the same large screen and expensive back mounted projector; however, I was impressed with the two side projection screens. That was a good plan. We also host Central Office functions where all PD activities/keynotes happen at our school. This would be a useful feature. I was a little unsure about having the video conferencing functions in this room. How often would it be available to classroom teachers? As well, is it practical for small classroom groups? I just wondered if having it available in another setting might have been more practical. Knowing the cost of the lights and how sensitive they are, as well as the sensitivity of the mixing boards, I wonder how much students are able to work with this equipment. I know we have really limited ours. Overall, impressive facility. I hope the classrooms have as much technology functionality.