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3.4.2 Address call setup sequence
CES
NCS
FELCOM
Calling operation
(DTR ON)
CTS/DSR ON
SES RQ
"CRNxx .. x"
Access req. SU
CESI
Ch. assignment req. SU
Channal assignment SU
NCSI
NCSA
Service addr. SU
HSUB
scr. vec. advise SU
HSUB
Scr. vec. ack SU
Ret. carrier ID SU
HSUB
Call to
subscriber
Fill in SU
Reply from
subscriber
HSUB
CES connect SU
HSUB
SES connect SU
CTS OFF
HSUB
CTS/DCD ON
Figure 6 Address call setup sequence
13
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Troubleshooting
