Modify Modem Settings

Use the rscadm modem_setup command to enter the following AT commands:

# rscadm modem_setup
OK
ATZ (Reset modem)
OK
ATE1 (Turn echo on for this session)
OK
AT&N6 (Set serial port baud rate to 9600)
OK
AT&R1 (Turn off RTS flow control)
OK
ATS13=1 (Set S-register 13 to 1; reset modem when DTR drops)
OK
AT&B1 (Set serial port to fixed rate)
OK
AT&W (Store current settings to modem NVRAM)
OK

After executing these AT commands, you can verify the modem settings in NVRAM by using the ATI5 command:

OK
ATI5
USRobotics Courier V.Everything NVRAM Settings...

   BAUD=9600    PARITY=N  WORDLEN=8  DIAL=TONE 

   B0   F1   M1   X1   &A1  &B1  &G0  &H0  &I0  &K0
   &L0  &M0  &N6  &P0  &R1  &S0  &T5  &U0  &X0  &Y1  %N6  #CID=0

  S00=001 S02=043 S03=013 S04=010 S05=008 S06=002 S07=060 S08=002
  S09=006 S10=014 S11=070 S12=050 S13=001 S15=000 S19=000 S21=010
  S22=017 S23=019 S24=150 S25=005 S26=001 S27=000 S28=008 S29=020
  S31=000 S32=009 S33=000 S34=000 S35=000 S36=000 S37
OK

After confirming settings, turn the modem off, reset RSC using the GUI or the resetrsc shell command, and then turn the modem on again.