Setup strings for dialin and dialout USR modems at ACES (see attachments for references used as a starting point) USR Sportster v.34, v.FC Dip switches all OFF (up) except 8. at&f1&b1&k3s0=1s7=150s13=1s38=1&w USR Courier v.Everything Dip switches all OFF except 8. at&f1&b1&k3s0=1s7=150s13=1s19=30s32=6s38=1s51=3&w Explanation &f1 Pre-configured HW flow control template in modem. &b1 Fixed DTE rate &k3 Disable MNP5 for more reliable handshake/speed negotion and speed transmission of zipped files s0=1 Answer on 1st ring s7=150 Allow 150 seconds for call to go thru (long distance may take awhile) s13=1 Reset when DTR drops s19=30 Duration of inactivity timer s32=6 Button resets modem (front panel option for Courier only) s38=1 Allow a second for buffers to flush before dropping line s51=3 Disable MNP negotiation at 1200 and 2400 (Courier only) Spelled out... ati4 USRobotics Sportster 33600 Fax Settings... B0 E1 F1 M1 Q1 V1 X4 Y0 BAUD=115200 PARITY=N WORDLEN=8 DIAL=HUNT ON HOOK &A3 &B1 &C1 &D2 &G0 &H1 &I0 &K3 &M4 &N0 &P0 &R2 &S0 &T5 &U0 &Y1 S00=001 S01=000 S02=043 S03=013 S04=010 S05=008 S06= S07=150 S08=002 S09=006 S10=014 S11=070 S12=050 S13= S15=000 S16=000 S18=000 S19=000 S21=010 S22=017 S23= S25=005 S27=000 S28=008 S29=020 S30=000 S31=128 S32= S33=000 S34=000 S36=014 S38=001 LAST DIALED #: ati4 USRobotics Courier V.Everything Settings... B0 C1 E1 F1 M1 Q1 V1 X7 BAUD=115200 PARITY=N WORDLEN=8 DIAL=PULSE ON HOOK TIMER &A3 &B1 &C1 &D2 &G0 &H1 &I0 &K3 &L0 &M4 &N0 &P0 &R2 &S0 &T5 &X0 &Y1 %N6 #CID=0 S00=001 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002 S07=150 S08=002 S09=006 S10=007 S11=070 S12=050 S13=001 S14=001 S15=000 S16=000 S17=000 S18=000 S19=000 S20=000 S21=010 S22=017 S23=019 S24=150 S25=005 S26=001 S27=000 S28=008 S29=020 S30=000 S31=000 S32=006 S33=000 S34=000 S35=000 S36=000 S37=000 S38=002 S39=000 S40=000 S41=000 S42=126 S43=200 S44=015 S45=000 S46=000 S47=000 S48=000 S49=000 S50=000 S51=003 S52=000 S53=000 S54=064 S55=000 S56=000 S57=000 S58=000 S59=000 S60=000 S61=000 S62=000 S63=000 S64=000 S65=000 S66=000 S67=000 S68=000 S69=000 S70=000 LAST DIALED #: ================================================================= These settings derived from the following recommendations. From US Robotics Sportster Set dip switches 3 and 8 DOWN (ON). Put the rest UP (OFF). AT&F1&A0&B1&H1&R2&K3X0S13=1S0=1s54=64&W Courier Leave DIP switches 3, 5, and 8 in the DOWN (ON) position. AT&F&B1&H1&R2&K3X7S13=1&W ------------- From Doug at Auburn University Engineering USRobotics Courier V.Everything Settings... B0 C1 E1 F1 M1 Q0 V1 X7 BAUD=115200 PARITY=N WORDLEN=8 DIAL=HUNT ON HOOK TIMER &A3 &B1 &C1 &D2 &G0 &H1 &I0 &K3 &L0 &M4 &N0 &P0 &R2 &S0 &T5 &X0 &Y1 %N6 #CID=0 S00=003 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002 S07=060 S08=002 S09=006 S10=007 S11=070 S12=050 S13=000 S14=001 S15=000 S16=000 S17=000 S18=000 S19=000 S20=000 S21=010 S22=017 S23=019 S24=150 S25=005 S26=001 S27=000 S28=008 S29=020 S30=000 S31=000 S32=005 S33=000 S34=000 S35=000 S36=000 S37=000 S38=000 S39=000 S40=000 S41=000 S42=126 S43=200 S44=015 S45=000 S46=000 S47=000 S48=000 S49=000 S50=000 S51=001 S52=000 S53=000 S54=064 S55=000 S56=000 S57=000 S58=000 S59=000 S60=000 S61=000 S62=000 S63=000 S64=000 S65=000 S66=000 S67=000 S68=000 S69=000 S70=000 Most of the switches above are factory defaults. Below I'll list which ones I have changed and why. Dip switch #5 should be set to on. Without this you won't get auto answer. ats0=3 auto answer on second ring at&k3 disable MNP5 ats32=5 Auto Answer on/off toggle (used in conjunction with dip switch #5) ats51=1 Disable MNP/V.42 negotiation at 1200 baud. Nobody has V.42 at 1200 anyway, so why waste time negotiating it. Some may want to set ats51=3 to disable it for 2400 too.