HP 8921A - AMPS-TACS;NAMPS-NTACS FOCC Message and Filler Data Format; Filler (FOCC)

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Chapter 10, Signaling Encoder (AF Generator 2)
AMPS-TACS NAMPS-NTACS Encoder
Filler (FOCC)
Figure 59 AMPS-TACS/NAMPS-NTACS FOCC Message and Filler Data Format
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