Motorola SM56 User Manual download pdf (Page 7)

T T Tone Dial

This command instructs the modem to use DTMF tone

dialing.

Example: ATDT5554678.

This command uses DTMF tone Dialing to dial the number

5554678

V Result-Code Format

Determines whether the modem sends short- or ling-form

messages to the communications application, indicating

the connection status, rate, and mode.

V0 Return Numeric Code (Short Form)

Return Text (Long Form)

X Select Call-Progress Result Codes to Return

X0 No Carrier; Connect. Modem reports lack of a carrier sig-

nal; connection success/failure; modem dials without wait-

ing for a dial tone

X1 No Carrier; Connect; Connect <rate>. Modem reports lack

of a carrier signal; connection success/failure, and the

computer data rate established

X2 No Carrier; Connect; Connect <rate>; No Dial Tone.

Modem reports lack of a carrier signal; connection success/

failure; the computer data rate established; and the lack of

a dial tone

X3 No Carrier; Connect; Connect <rate>; Busy-tone. Modem

reports lack of a carrier signal; connection success/failure;

the computer data rate established; and the presence of a

busy signal

No Carrier; Connect; Connect <rate>; No Dial-tone; Busy-

tone. Modem reports lack of a carrier signal; connection

success/failure; the computer data rate established; the lack

of a dial tone; and the presence of a busy signal

Z Z Reset Modem Parameters to Default Configuration

&C DCD Control

&C0 Always Asserted

&C1

Asserted in Data Mode Only

&D DTR Control

Determines how modem responds to DTR signal from

DTE.

&D0 Ignore DTR

&D1 Enter Command mode when DTR transitions from

asserted to de-asserted

Table 1: AT and AT& Commands

Command Option Description

1 2 3 4 5 6 7 8 9 10 11 12 ... 41 42

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Motorola SM56 User Manual Page 7

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