2005 Mercedes C-Class Owner's Manual - Page 221

Controls in detail Audio system Accepting an incoming call If the telephone is active in the background (reception symbol is visible in the display), the audio source is muted when an incoming call is received. A ringing tone can be heard and the caller's telephone number, or the name under which the telephone number has been saved in the telephone book, appears in the display. If the caller's number is not relayed, CALL will appear in the display. Press s button. The call is accepted. Muting a call It is possible to mute a call; the caller is then no longer able to hear you. Mute on Press MUT soft key. MIC MUTE will appear in the display. Accepting a second incoming call If you receive another call during an already active call, you can accept the second call and switch between the two. Accepting a second call Place new call by entering telephone number manually. Mute off Press MUT soft key again. Terminating a call Press t button. The current call is terminated and the muted audio source becomes active again. i You will be notified of the second call acoustically, but you will not see this in the display. You are connected to the second caller; the first caller is kept on hold. 219