Boca M1440i (internal)
ATS48=0S37=9S46=136%C0%E0%M0&K0&Q0&R1&C1&D2\G0\N1N0

Boca 14.4k (internal)
AT&C0N0S37=9&K0W0&Q0S36=3S48=128%C0

Boca 14.4 Fax/Modem
AT S46=0 S37=9 N0 &Q0 &D2 &K4

Boca 14.4k (external)
AT &F S0=1 S36=0 &K0 &Q6N0S37=9 &D2

Boca 14.4k
AT S46=0 S37=9 N0 &Q0 &D2 &K0 %C0

Cardinal 14.4k v.32bis, v.42bis Fax/Modem
AT &F N0 S37=9 &Q0 &D2 \N1

Digicom Systems (DSI) (softmodem)
AT Z \N0 &D2 &K0 S48=48

Digicom Systems Scout Plus
ATZ*E0*N3*M0*S0*F0&D2

Gateway Telepath
AT &F S37=9 %C0 &K0 &Q6 \G0

Gateway Telepath 14.4k
AT S46=0 S37=9 N0 &Q0 &D2 &K0 %C0

Gateway Telepath I
AT S0=1 &N6 &K0 &M0

Gateway Telepath II
AT S0=1 S37=9 %C0 &Q0 &K0

Generic v.32bis 14.4k Fax/Modem
AT \N0 %C0 B8

Generic 14.4k Fax/Modem
AT S46=0 S37=9 N0 &Q0 &D2 %C0 \G0 &K0

GVC 14.4k (internal)
AT &F B8 \Q0

Hayes 28.8k V.FAST Modem
AT &Q6 &K S37=9 N %C0 \N0

Infotel 144I:
AT&Q0 S37=9 N0 &D2

Intel 14.4k
AT \N0 %C0 \Q0 B8

Intel 14.4k (internal)
AT Z B8 Q1 \C0 \N1 %C0 \V "H

Microcom QX/4232bis
AT %C0 \N0

Netcomm M7F
AT &E &K0 B0 \V0 X4 &D2 \N1 \Q0 #J0 #Q9 %C0

Nokia ECM 4896M Trellis V.32.
AT Z %C0 /N0

Practical Peripherals 14400FX v.32bis
AT Z S46=0 &Q0 &D2

Practical Peripherals 14400FX v.32bis
AT S46=0 &Q0 &K0 &D2

Supra
AT &F0 S46=136 %C0

Supra (external)
AT &K &Q &D \N1

Supra 14.4k v.32bis
AT &F S46=136 &Q0 &D2

Supra 14.4k v.32bis
AT &K &Q &D \N1

Telepath 14.4k
AT &F&M0&K0&N6&H0 S0=1

USR Courier v.32bis
ATS0=1 S7=60 E1 Q0 V1 &C1 &D2 &H0 &K0 &M0 &N6 &A3

USR Courier HST/DS 16.8k

        In your favorite terminal program, type "AT &F" BEFORE running
DOOM.  Then, put the following initialization string in the MODEM.CFG.
Putting "AT &F" in the string does not work.

AT X4 B0 &A0 &B0 &H2 &I0 &K0 &M0 &N6a

USR DS v.32bis v.42bis (external)
AT&m0&n6&a0&r1&h0&k0&i0&s0&b1x1

USR Sporster 9600
AT&M0&K0&N6

USR Sportster 14.4k Fax/Modem
AT S0=1 S7=60 E1 QO V1 &C1 &D2 &K0 &N6 &A3
Note that this LEAVES ERROR CORRECTION ON!  This may slow down the game,
and your mileage may vary.

USR Sportster 14.4k Fax/Modem (internal)
AT &F&M0&K0&N6&H0

USR Sportster 14.4k (internal)
AT &F &B1 &H0 &I0 &K0 &M0 &N6 &R1

USR Sportster 14.4k
ATS0=1S7=60E1Q0V1&C1&D2&K0&N6&A3

USR Sportster 14.4k
AT &F0 &K0 &M0 &N6 &H0 &I0 &B1 &R1

USR 14.4k
AT &F&A0&K0&M0

USR 14.4k
AT &K0 &H0 &D0 &I0 &R1

USR 14.4k Dual Standard
ATB0&R1&B1&N6Q0X4&A0&D2&H0&I0&K0&M0M1

ViVa 14.4k
AT&F&Q6\N0%C0&D2N0S37=9

Zoom 14.4k VFX
AT&Q6S37=9N0%C\N0

Zoom 14.4k VFX (at 14.4k: your mileage may vary)
AT&Q6S37=11N0%C&K0

Zoom OEM Modem
AT&Q6S37=9N0&K0

Zyxel U-1496E+
AT Z &N4 &K0