User`s manual

U.S. Robotics I-modem Command Reference

Appendix A: Alphabetic Command Summary • Page A-41

S51 0 Bit-mapped register. See Chapter 1, Using the AT Command Set, for

instructions about how to set bit-mapped registers.

Bit Value Result

0 1 Disable MNP/V.42 for V.22 (1200 bps)

1 2 Disable MNP/V.42 for V.22bis (2400 bps)

2 4 Disable MNP/V.42 for V.32/V.32bis/V.32terbo

(9600/14400/19200/21600 bps).

S53 126 Bit-mapped register. (See Chapter 1, Using the A

T Command Set, for

instructions about how to set bit-mapped registers.)

Bit Value Result

0 1 Dial security enabled.

1 2 Prompting enabled.

2 4 Local-access password protection enabled.

NOTE: Enabling local-access password protection disables the &Zn=s com-

mand (which stores up to 10 phone numbers) because stored phone num-

bers occupy the same space in NVRAM

as the dialback numbers for Dial

Security accounts.

Table AÐ1. S-register

s: Their Functions and Default Settings