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Appendix A: AT Commands
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 91
Command Function
DTE Data Type Options
&Q0 DTE is async
&Q1 DTE is sync
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 if link up
DTE Connector Data Synchronous Data Clocking Options
&X0 Internal transmit clock
&X1 External transmit clock
Assigning 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
Local Echo Options
E0 Disable local echo
E1 Enable local echo
Unit Identification
I0 Identify unit. Commands the unit to display model number.
I1 Identify software. Commands the unit to display software version.