note 
Mute Base Microphone
During a call or an intercom call, press mute on the base to mute the microphone. Mute On appears on the display. To cancel muting, press mute again.
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The tone feature only applies when the dial mode is set to pulse.
Tone Dialing Switch-over
If your telephone company requires pulse dialing, you can switch over to tone dialing after the call connects. This feature is useful when you need tone dialing to use any automated menu systems, such as telephone bank tellers, telephone prescription refills, customer support menus, etc.
If your phone is set to pulse dialing mode, make your call normally. Once your call connects, press */tone/ 
. Any digits you enter from then on will be sent as tone digits. When this particular call ends, the phone automatically returns to pulse dialing mode.
Traveling Out of Range
During a call, as you begin to move your handset too far from your base unit, noise may increase. If you pass the range limits of the base unit, your call will terminate within one minute.
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