Multitech MT5634ZBA-USB Betriebsanweisung PDF herunterladen (Seite 23)

Chapter 4 - AT Commands, S-Registers and Result Codes

AT Command Summary

Command: AT Attention Code

Values: n/a

Description: The attention code precedes all command lines except A/, A:, and escape sequences.

Command: ENTER Key

Values: n/a

Description: Press the E

NTER (RETURN) key to execute most commands.

Command: A Answer

Values: n/a

Description: Answer call before final ring.

Command: A/ Repeat Last Command

Values: n/a

Description: Repeat the last command string. Do not precede this command with AT. Do not press E

N-

TER to execute.

Command: Bn Communication Standard Setting

Values: n = 0–3, 15, 16

Default: 1 and 16

Description:B0 Select ITU-T V.22 mode when modem is at 1200 bps.

B1 Select Bell 212A when modem is at 1200 bps.

B2 Deselect V.23 reverse channel (same as B3).

B3 Deselect V.23 reverse channel (same as B2).

B15 Select V.21 when the modem is at 300 bps.

B16 Select Bell 103J when the modem is at 300 bps.

Command: Cn Carrier Control

Values: n = 1

Default: 1

Description:C0 Transmit carrier always off. (Not supported.)

C1 Normal transmit carrier switching (included for backward compatibility with some software).

Command: Ds Dial

Values: s = dial string (phone number and dial modifiers)

Default: none

Description: Dial telephone number s, where s may up to 40 characters long and include the 0–9, *, #,

A, B, C, and D characters, and the L, P, T, V, W, S, comma (,), semicolon (;), !, @, ^ and $

dial string modifiers.

Dial string modifiers:

L Redial last number. (Must be placed immediately after ATD.)

P Pulse-dial following numbers in command.

T Tone-dial following numbers in command (default).

V Switch to speakerphone mode and dial the following number. Use ATH command to

hang up.

W Wait for a new dial tone before continuing to dial. (X2, X4, X5, X6, or X7 must be se-

lected.)

, Pause during dialing for time set in register S8.

; Return to command mode after dialing. (Place at end of dial string.)

! Hook flash. Causes the modem to go on-hook for one-half second, then off-hook again.

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