Appendix
2. CONTROL PROCEDURE AND SIGNALS USED FOR G3
2.1 G3 Control Procedure
Line disconnected
Calling Side (transmitter)
Dial
CNG
When Q=EOM
NSS
TSI
DCS
TRAINING
TCF
When Q=MPS
TRAINING
MESSAGE
RTC
Q
DCN
Figure 2 G3 Control Procedure
Called Side (receiver)
CED
NSF
CSI
DIS
CFR
MCF
When Q=EOP
Line disconnected
: Preamble
A-2