D. Choose the dialing mode
Most phone systems use tone dialing, which sends DTMF tones through the phone lines. However some phone systems still use pulse dialing such as in rural areas. The default setting is tone dialing. Depending on your dialing system, set the mode as follows:
1) When the phone is in the standby mode, press menu/mute.
2) Press 
to move the pointer to “Dial Mode”.
3) Press select/chan and the display will show the current setting. (The initial setting is Tone.)
4)Press + or 
to change the selection.
5)Press select/chan, and you will hear a confirmation tone.
6)Press end to exit.
•If you are not sure of your dialing system, set the unit to tone dialing. Make a trial call. If the call connects, leave the setting as is, otherwise set the unit to pulse dialing.
•If your phone system requires pulse dialing and you need to send DTMF tones in certain situations during a call, you may
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