TOA Electronics EXES 6000 CP-63 - Manual (Page 39)

Executive Priority (Highest Priority)
This function is available only for those stations specifically
programmed for this function, with programming station
No. 200. When the station called is busy, as indicated by
the busy or privacy tone, dialing
sends a priority tone. This priority tone is transmitted for a
few seconds and then the call is put through, terminating
the original conversation.
When the called station is busy or in the Conference mode
or during a paging call, this function allows forced interrup-
tion for priority conversation.
Original Conversation
Busy Tone
Priority Call
Conversation Over
Priority
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