Motorola SM56 manual Tone Dial, Result-Code Format, Select Call-Progress Result Codes to Return

Command

Option

Description

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)

V1

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

X4

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