Extended AT commands
Command |
| Function |
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|
|
&C_ | &C0 | Force Carrier Detect Signal High (ON) |
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| &C1 | Turn on CD when remote carrier is present |
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&D_ | &D0 | Modem ignores the DTR signal |
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| &D1 | Modem returns to Command Mode after DTR |
|
| toggle |
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| &D2 | Modem hangs up, returns to the Command |
|
| Mode after DTR toggle |
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| &D3 | Resets modem after DTR toggle |
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&F_ | &F | Recall factory default configuration |
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&G_ | &G0 | Guard tone disabled |
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| &G1 | Guard tone disabled |
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| &G2 | 1800 Hz guard tone |
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&K_ | &K0 | Disable flow control |
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| &K3 | Enable RTS/CTS hardware flow control |
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| &K4 | Enable XON/XOFF software flow control |
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| &K5 | Enable transparent XON/XOFF flow control |
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| &K6 | Enable both RTS/CTS and XON/XOFF flow |
|
| control |
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&M_ | &M0 | Asynchronous operation |
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&P_ | &P0 | US setting for |
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| &P1 | UK and Hong Kong |
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| &P2 | Same as &P0 setting but at 20 pulses per |
|
| minute |
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| &P3 | Same as &P1 setting but at 20 pulses per |
|
| minute |
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&R_ | &R0 | Reserved |
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| &R1 | CTS operates per flow control requirements |
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&S_ | &S0 | Force DSR Signal High (ON) |
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| &S1 | DSR off in command mode, on in |
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| mode |
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&T_ | &T0 | Ends test in progress |
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| &T1 | Perform Local Analog Loopback Test |
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| &T3 | Perform Local Digital Loopback Test |
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| &T4 | Grant Remote Digital Loopback Test request |
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| by remote modem |
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| &T5 | Deny Remote Digital Loopback Test request |
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| &T6 | Perform a Remote Digital Loopback Test |
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| &T7 | Perform a Remote Digital Loopback Test and |
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| |
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| &T8 | Perform Local Analog Loopback Test and |
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| |
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&V | &V0 | Displays Active and Stored Profiles |
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