The Cisco Unified IP Phone 7906G and 7911G provide a speaker for hands-free listening. When you use the speaker, you can hear the conversation but cannot talk because the phone does not contain a built-in microphone. To talk on a call, you must use the handset.
You can use the speaker in one of two ways, depending on how your system administrator enables the phone. Your phone may be enabled for one of the following features, but not both at the same time: