HP 8920A Programmer's Manual page 523

REG ID Message Fields
Figure 49 REG ID Message Fields
T1T2
DCC
REGID
END
This field identifies the received message as an order confirmation, an order, or a called
address message.
2 binary characters required.
Digital color code field.
2 binary characters required.
Registration ID field.
20 binary character required.
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.
Chapter 8, Programming The Call Processing Subsystem
CALL BIT Screen Message Field Descriptions
523