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.