
Configuring Dial Services
E-4
117353-B Rev. 00
&Q1, &Q4 The modem hangs up.
&Q2, &Q3 The modem hangs up.
&D1 Interpret DTR ON-to-OFF transition per &Qn:.
&Q0, &Q1, &Q4,
&Q5, &Q6
Asynchronous escape.
&Q2, &Q3 The modem hangs up.
&D2 Interpret DTR ON-to-OFF transition per &Qn:.
&Q0 through &Q6 The modem hangs up.
&D3 Interpret DTR ON-to-OFF transition per &Qn:.
&Q0, &Q1, &Q4,
&Q5, &Q6
The modem performs soft reset.
&Q2, &Q3 The modem hangs up.
&F0 Restore factory configuration 0.
&F1 Restore factory configuration 1.
&G0 Disable guard tone.
&G1 Disable guard tone.
&G2 Enable 1800-Hz guard tone.
&J0 Set S-Register response only for compatibility.
&J1 Set S-Register response only for compatibility.
&K0 Disable DTE/DCE flow control.
&K3 Enable RTS/CTS DTE/DCE flow control.
&K4 Enable XON/XOFF DTE/DCE flow control.
&K5 Enable transparent XON/XOFF flow control.
&K6 Enable both RTS/CTS and XON/XOFF flow control.
&L0 Select dial-up line operation.
&M0 Select direct asynchronous mode.
&M1 Select sync connect with async off-line command mode. *
&M2 Select sync connect with async off-line command mode and enable
DTR dialing of directory zero. *
&M3 Select sync connect with async off-line command mode and enable
DTR to act as Talk/Data switch.
(continued)
Table E-1. Summary of AT Modem Initialization Commands
(continued)
Command Function
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