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Numerics
911feature
ACNR
Automatic called number redial (ACNR)
Buttons and features
Callback
Characters on display
Dial by name
custom messages
DND (Do Not Disturb)
End calls
Entering characters on display
External calls
Flexible (flex) buttons
Handsfree mode
Hold
Join calls/conversations
Last number redial
Leave a message
call back
Lost calls
MSG
Mute
Nav button
Park and page
Received call list
Ring types
Station programming
Transfer calls
Voice over
SBX IP 320 Phone User Guide