:

1.  ⅅ.3
2.  ....5
   1.  V.25 (RS-366A)5
   2.  V.25bis...6
   3.  V.8..9
   1.  ...10
   2.  ..11
   3.   12
   4.   12
3.     腅...13
   1.  .13
3.2.      腅...14
   1.   14
   2.   ...14
3.2.3.    ..15
   2.   腅15
   1.   V.21, Bell 103J..15
   2.   V.22, V.22bis.16
   3.   V.23 ..17
   4.   V.26, V.26bis, V.26ter ....18
   5.   V.32 ..18
   6.   V.32bis..18
   7.   V.33...19
3.2.8.    V.34, V.34+, V.Fast..19
   3. -  ....23
   1.   V.27, V.27bis, V.27ter ....23
   2.   V.29 ..23
   3.   V.17 ..26
   4.    27
   1.   V.32terbo .27
   2.   ZyX, ZyCELL ...28
   3.   HST, RHST ..29
3.5.4.    PEP, TurboPEP ...30
   5.      30
4.    ..34
4.1.  MNP ..34
4.1.1.   ..34
4.2.  V.42 ..35
4.2.1.   .35
5.    37
5.1.    37
5.2.     MNP 39
5.2.1.  MNP5 .39
5.2.2.  MNP7 .42
5.3.     V.42bis 42
6.    44
6.1  XModem 44
6.2.  XModem-CRC 45
6.3.  XModem-IK .45
6.4.  YModem ..45
6.5.  YModem-g ..45
6.6.  ZModem ..46
6.7.  Kermit ..46
6.8.       ...46

  .51