Specifications and Regulatory Information
Modem Reference Information
Reference Guide 137
Command Function (Ambit)
W1 Report line speed, EC protocol and DTE speed
W2 Report DCE speed only
X0 Report basic call progress result codes, i.e., Ok, Connect, Ring, No Carrier (also, for busy, if enabled, and
dial tone not detected), No Answer and Error
X1 Report basic call progress result codes and connections speeds (Ok, Connect, Ring, No Carrier (also, for
busy, if enabled, and dial tone not detected), No Answer, Connect XXXX, and Error
X2 Report basic call progress result codes and connections speeds, i.e., Ok, Connect, Ring, No Carrier (also,
for busy, if enabled, and dial tone not detected), No Answer, Connect XXXX, and Error
X3 Report basic call progress result codes and connections rate, i.e., Ok, Connect, Ring, No Carrier, No
Answer, Connect XXXX, Busy, and Error
X4
Report all call progress result codes and connections rate, i.e., Ok, Connect, Ring, No Carrier, No Answer,
Connect XXXX, Busy, No Dial Tone and Error
Y0
Disable long space disconnect before on-hook
Y1 Enable long space disconnect before on-hook
Z0 Restore stored profile 0 after warm reset
Z1 Soft reset and restore stored profile 1 after warm reset
&C0 Soft reset and force RLSD active regardless of the carrier state
&C1
Allow RLSD to follow the carrier state
&D0 Interpret DTR On-to-OFF transition per &Qn
&Q0, &Q5, &Q6: The modem ignores DTR
&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: 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 low 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
&P0
Set 10 pps pulse dial with 39%/61% make/break
&P1 Set 10 pps pulse dial with 33%/67% make/break
&P2 Set 20 pps pulse dial with 39%/61% make/break