HP 8921A - REG ID Message Fields

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Chapter 6, Call Processing Subsystem
CALL BIT Screen Message Field Descriptions
REG ID Message Fields
Figure 30 REG ID Message Fields
T1T2
This field identifies the received message as an order confirmation, an order, or a
called address message.
DCC
Digital color code field.
REGID
Registration ID field.
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.