2004 Mercedes CLK-Class Owner's Manual - Page 209

Controls in detail Audio system Accepting an incoming call in cassette, CD or radio mode If the telephone is activated in the background (receiving symbol S visible on display), the audio source is muted when a call is received. The ringing tone is heard and the caller's telephone number or the name under which this telephone number has been saved in the telephone book appears on the display. If the caller's number is not transmitted, CALL appears in the display. Press the SND key to accept the call. Muting a call It is possible to mute a call; the caller is then no longer able to hear you. Mute on Press the MUT key. Mute off Press the MUT key. Terminating a call Press the END key. The current call is terminated. Accepting a second call Press the SND key. You are connected with the second caller, the first call is muted. Switching between the calls Press the SND key. Terminating the second call Press the END key. The current call will be terminated. You are connected with the muted call again. Call waiting If you receive another call during an already active call, you can accept the second call and switch between the two. 209