GE 28223EE1 User Manual page 21

5. Use the touch tone pad to enter the handset name/number to be
monitored.
NOTE: When this phone system is expanded (up to 6
handsets by purchase of optional Model 28203 handset
with recharge cradle), handsets are named HANDSET 1,
HANDSET 2, HANDSET 3 and so on respectively.
6. The receiving handset will turn on the microphone and the
originating handset will turn on the speakerphone to monitor
sound from the receiving handset.
NOTE: For room monitoring mode to work, the originating
handset must NOT be on the cradle.
NOTE: While in room monitoring mode, the handsets will
emit an alert tone approximately every 5 seconds if there is
an incoming call. You may press the TALK/SPEAKER button
to quit room monitor and answer the call.
NOTE: While in room monitoring mode, the originating
handset can be switched to monitor by handset earpiece
by pressing the TALK/SPEAKER button once. Switch back to
speakerphone by pressing the TALK/SPEAKER button once.
NOTE: Press the END button on the handset to exit room
monitor mode.
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