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Phone and PABX Calls
DTMF Overdial
If set up by your Service Provider, DTMF 
allows you to communicate with an 
automated answering device (for example, 
the voice mail or answering machine) during 
an on-going call.
While in an on-going call, press the DTMF 
keys (0-9, *, #). When pressed, the DTMF 
key will sound a tone and the entered digit will be displayed 
on the screen.
Recent Calls List
Select the number from the recent call list. See “Recent 
Calls” on page 96.
Calling a Number in a Message
See “Calling a Number in a Message” on page 109.
Answering a Phone or PABX Call
1. The MTH800  switches to the incoming Phone/PABX Call.
2. To answer the incoming call, press  or any other key if 
programmed (except Home/End/On-Off key).
3. To end the call,
 press .
If the called person or the infrastructure end the call, the 
Call 
Ended
 message is displayed.
For call alert, see settings in the Vibrate menu option (page 81) and the 
Tones menu option (page 85)
.
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Phone In Use
12345*#67890
6802972C35.book  Page 53  Monday, August 16, 2004  9:22 PM