Escape and Hang up
When you instruct the controller to close the connection, you must put
the modem back in command state and issue the hang-up (Hn
- Control The Switchhook ) command. In addition to hanging-up, you also
want to restore changed settings to their factory-set values, or issue an
ATZ<CR>to undo your changes. Restoring
the modem settings is necessary when the connection was closed due to loss-of-carrier.
Click on one of the following topics for more information:
Escaping the Modem to Command State
Using DTR to Escape or Hang Up
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