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Appendix A. AT Commands and S-Registers
61202.153L3-1 Express XRT User Guide 61
*These presets are invoked by &Z0 through &Z9 AT commands.
They access the stored numbers used for dialing.
Calling Number Identifiers
&N0 Number 1. Read far-end phone number 1 if service
subscribed from telephone company.
&N1 Number 2. Read far-end phone number 2 if service
subscribed from telephone company.
Clear-To-Send (CTS) Control Line Options
&R0 Follows RTS
&R1 Forced CTS
Data Set Ready (DSR) Control Line Options
&S0 DSR forced on
&S1 DSR if call up
&S2 DSR off if link down
Accessing Stored numbers for Dialing Options*
&Z0 Stored number 0
&Z1 Stored number 1
&Z2 Stored number 2
&Z3 Stored number 3
&Z4 Stored number 4
&Z5 Stored number 5
&Z6 Stored number 6
&Z7 Stored number 7
&Z8 Stored number 8
&Z9 Stored number 9
Command Function
Local Echo Options
E0 Echo off. Does not allow command characters typed to
be displayed on the screen.
E1 Echo on. Allows the command characters typed to be
displayed on the screen.
AT Command Response Message Options
Q0 Response messages on
Q1 Response messages off