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Chapter 8, Programming the Call Processing Subsystem
CALL BIT Screen Message Field Descriptions
BIS
Busy-Idle status field.
1 binary character required.
RSVD
Reserved for future use, all bits must be set as indicated.
15 binary characters required.
END
End indication field.
• Set to 1 to indicate the last word of the overhead message train.
• Set to 0 if not the last word.
1 binary character required.
OHD
This field displays the overhead message type.
• A ‘100’ indicates a global action message.
• A ‘110’ indicates this is the first word of the system parameter overhead parameter
message.
• A ‘111’ indicates this is the second word of the system parameter overhead message.
3 binary characters required.
Parity
Parity field. The contents of the Parity field cannot be set by the user. The Test Set
calculates the parity bits.
