Multitech MTCMR-H User's Guide download pdf (Page 43)

Chapter 3 – Supported GSM/WCDMA AT Commands

High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A) 43

Chapter 3 – Supported

GSM/WCDMA 3G AT Commands

Supported ITU-T Recommendation V.250 Commands

&D Set DTR Function Mode

Description: This command controls the Data Terminal Ready (DTR) function mode.

Syntax:

Command Responses

Action Command:

AT&D[<n>]

No Read and Test Commands

Values: <n> DTR Signal Control Parameter

0 The DTR signal is ignored

1 Modem switches from data to command mode when DTR switches from ON to

OFF

2 Upon DTR switch from ON to OFF, the call is released. Default.

Parameter Storage: The <n> parameter is stored in EEPROM using AT&W. The default value can be

restored using AT&F.

Examples:

Command Responses

AT&D0

Note: The DTR signal is ignored

Note: Command valid

AT&D1

Note: Modem switches from data to

command mode when DTR switches from

ON to OFF

Note: Command valid

AT&D2

Note: Upon DTR switch from ON to OFF,

the call is released

Note: Command valid

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 146 147

No comments

Multitech MTCMR-H User's Guide Page 43