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Dialling
Dialling will commence as soon as the DTR signal is asserted (an OFF-ON transition occurs).
Your modem will not generate response codes when synchronous mode 2 is selected. All call
progress is indicated by your modem’s speaker (the M command controls the operation of your
modem’s speaker). As soon as your modem connects to a remote modem it will assert the DSR
and DCD signals.
Hanging Up
Your modem will hang up and return to quiet asynchronous mode if the carrier is lost for longer
than the period defined by S Register 10 or if DTR is lowered.
Answering Calls
Whenever your modem receives an incoming call it will assert the RI signal. The terminal may
accept the call by asserting the DTR signal as soon as the number of rings defined by S Register
0 is reached. The terminal may refuse the call by keeping DTR low eight seconds after the
number of rings in S Register 0 is reached.
Your modem will not dial the stored number in response to DTR being asserted between the
time an incoming call is initially detected and the call being cleared.