After you have successfully logged on, you should see the icons appearing at the system tray at the bottom right hand corner of your Window.
Your installation is therefore complete!
Do not be surprised if you see that all your contacts are offline at the very beginning. This is because they have to go through an approval process to allow you to see their online status. Similarly you may also have approvals to be made as soon as you haved logged in for the first time. Refer to the Privacy section below for more information.
Privacy
You can start adding contacts to your Office Communicator via Tools -> Add a Contact...
Note that for each and every contact that you add into your contact list, he/she will receive a notification
as below:

The added contact therefore has the option of allowing you to view his/her online status. Note that, however,
he/she will not be prompted if he/she has already added you into his/her contact list.
Vice versa, if anyone tries to add you as his/her contact, you will not be prompted as above if you have
added him/her as your contact before.
Encryption
Note that encryption is enabled by default but is not applicable for video, audio & application sharing sessions;
Encryption is only applicable for text messages.
Please also read the FAQ for some of the problems which you might
encounter during the usage.