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This Appendix lists the supported AT commands and descrip-
tions of their functions. Bold text indicates default settings.
Command
Function
A
Answer. Puts the ISU 2x64 in answer mode.
D
Dial. Precedes the telephone access number [ATD5551212].
H
Hang up. Disconnects the current call.
O
On line. Commands the unit to go back on line.
S
S Register.
SS
S String register.
Z
Reset. Resets the AT command processor.
&W
Save. Save current configuration to EEPROM.
+++
Break in. Break in AT command processor during an active call. The
break in character can be defined in S2.
_U
Reset ISDN interface.
!S
Dump Status Buffer contents to the DTE port.
_Z
Power resets unit.
61200051L1-1D
ISU 2x64 Dual Port ISDN Service Unit User Manual
Appendix A
AT Commands
89
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