User`s manual

U.S. Robotics I-modem Command Reference

Appendix A: Alphabetic Command Summary • Page A-38

2 4 Disable V.32 modulation; used for testing HST modu-

lation.

3 8 Disable 2100 Hz answer tone to allow two V.42

devices to connect more quickly.

4 16 See next page.

5 32 See next page.

7 128 Unusual software incompatibility. Some software

may not accept some result codes. This setting dis-

ables the codes and displays the 9600 code instead.

The call's actual rate can be viewed on the ATI6

screen.

Error control handshaking options: Select the total value of bits 4 and 5.

Bit 4 Bit 5 Result

0 0 Complete handshaking sequence: V.42 Detection,

LAPM error control, MNP.

16 0 Disable MNP.

0 32 Disable V.42 Detection and LAPM.

16 32 Disable Detection phase, if you know that the remote

I-modem does LAPM, but not the Detection phase.

Table AÐ1. S-register

s: Their Functions and Default Settings