Yes. You can install the Jabber Video application from ciscojabbervideo.com. on more than one computer. To access your account on any computer that has the app installed, simply sign in with your email address or video address as the username and your account password.
You can be signed in to Jabber Video on one computer at a time only. If you sign in on a second computer, you are automatically signed out on the first computer. If someone makes a video call to you, the call comes through only on the computer where you are currently signed in.