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Use only the supplied AD-420 AC
adapter. Do not use any other AC
adapter.
Connect the AC adapter to a
continuous power supply.
Place the base unit close to the
AC outlet so that you can unplug the
AC adapter easily.
If your telephone outlet isn't modular,
contact your telephone company for
assistance.
Polarity of the plug
Modular
Choose the dialing mode
Depending on your dialing system, set the PULSE-TONE switch as
follows:
If your dialing system is Set the switch to
Tone TONE
Pulse PULSE
If you aren't sure of your dialing system
Make a trial call with the PULSE-TONE switch set to TONE.
If the call connects, leave the switch as is; otherwise, set to
PULSE.
PULSE
TONE