Cisco Systems OL-10984-01 ユーザーズマニュアル

I want to start an audio or video call or send an e-mail, but the button and 

menu item are dimmed. 

Possible solutions include: 

You must first click the name of a contact or communication in the console. 

The contact card for the contact you have selected does not have the required 
information. For example, phone number or e-mail address is missing. 

If you have further questions, contact your system administrator. 

A notification did not appear on my screen when someone called. 

Notifications only operate when Cisco Unified Personal Communicator 

is running. Make sure you launch the application each time you turn on your 
computer. 

See also: 

I am using my soft phone on a call and I hear no sound. However, the 

conversation window indicates that I am connected. 

Try the following: 

Look at the conversation window and make sure that the volume is not too 
low and that the conversation is not on hold.