⑦
“
#
”
button: This is a additional button when public address, for example, input the
terminal code then press this button to add more terminals. ( maximum 4 )
⑧
“
TALKBACK
”
button,
“
CALL
”
one way call button and
“
MONITOR
”
monitor button: There
are two operating ways to realize this function, press CALL+ NUMBER button + OK or
NUMBER button+CALL.
⑨
“
CANCEL
”
cancel button and
“
OK
”
confirm button: This is to confirm or hand off button
when intercom, broadcast or monitor.
⑩ Volume UP/Down button: when intercom and one way calling or play background music,
press this button to up/down the volume.
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