Axel AX4000 User's Manual - Manual (Page 84)

Appendix
78
AXEL Office Server
A.5.3 - Modem Flow Chart
The diagram shows how an Office Server serial port handles a modem:
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Modem
ready
yes
Sending reset HAYES sequence
no
Hang Up
Dial-out
no
Sending ATD+phone number
Network service processing
Service ended
yes
yes no
Waiting for a call
Running network service
Sending init HAYES sequence