                   LIST of 'useful' BITMAPPED REGISTERS

         (S95 register is for V.32/V.42bis modems only)

S14                   S21                 S22           S23
bit 0=F               bit 0=&J          bit 0,1         bit 0
 F1 *[0] disabled         *[0] &J0           [0] L0          [0] &T5
 F0  [1] enabled           [1] &J1           [1] L1         *[1] &T4
bit 1=E               bit 1 reserve         *[2] L2     bit 1,2,3 local DTE
 E0  [0] disabled     bit 2                  [3] L3          [0] 300 bps
 E1 *[2] enabled          *[0] &R0      bit 2,3              [2] 600
bit 2=Q                    [4] &R1           [0] M0          [4] 1200
 Q0  [0] disabled     bit 3,4               *[4] M1          [6] 2400
 Q1 *[4] enabled          *[0] &D0           [8] M2          [8] 4800
bit 3=V                    [8] &D1          [16] M3         [10] 9600
 V0  [0] numeric           [16] &D2     bit 4,5,6           [12] 19200
 V1 *[8] verbose           [24] &D3          [0] X0         [14] 38400
bit 4=reserved        bit 5                 [16] X1    bit 4,5 PARITY
bit 5=pulse/tone          *[0] &C0          [32] X2          [0] even
    *[0] tone              [32] &C1         [48] X3         [16] space
     [32] pulse       bit 6                *[64] X4         [32] odd
bit 6=(part of)ATQ        *[0] &S0          [80] X5         [48] none
    *[0] atq 0,1           [64] &S1         [96] X6    bit 6,7
     [64] atq2        bit 7                [112] X7         *[0]  &G0
bit 7=orig/answer         *[0] Y0       bit 7               [64]  &G1
     [0] answer          [128] Y1          *[0] &P0        [128]  &G2
  *[128] originate                        [128] &P1

 S95
   bit 0                                  * are defaults where applicable
       *[0] CONNECT message shows
            modem-computer speed         The  numbers  in  SQ  brackets  are
        [1] CONNECT message will show    actual numbers added or  subtracted
            modem-modem speed            to/from  the register for that  BIT
   bit 1                                 (or  'series' of bits). Type  ATSx?
   0*   [2] if error correcting modem    where x is the register you want to
            detected  /ARQ is added      view.  Subtract in succession,  the
   bit 2                                 LARGEST  [number] for the  register
   0*   [4] enable CARRIER results       you  can  until you reach  0.  Each
   bit 3                                 [number] you are able to  subtract,
   0*   [8] enable PROTOCOL results      is a BIT that is SET.
   bit  4                                    (not all Zoom/modems  use  all
        reserved                              indicated BITS)
   bit 5
   0*   [32] enable COMPRESSION results
   bit 6,7 reserved

                                   Don Hinds - Zoom Tech

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