— Off-Hook Call Announcement (OHCA)
— Off-Hook Call Announcement (OHCA), Whisper
Programming Guide References
• 2.4 Class of Service (COS)
– DND Override
Features Guide References
1.6 Originating Features
• Do Not Disturb (DND) Override
1.8 Ringing Features
• Do Not Disturb (DND)
User Manual References
• 4.3.27 Do Not Disturb (DND)
User Manual
Station Features and Operation (PT/SLT)
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