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V.250 AT COMMANDS

49 AT Commands for EV-DO-EV3 Modems

Syntax

Command Command type

ATS7=[<tout>] Set

ATS7? Read

Parameters and Values

<tout> Number of seconds.

1-255 Default: 60.

Notes

 Reference: V.25ter.

Escape Prompt Delay S12

Set command sets:

1. The minimum period, before the first of the three escape characters is received, during which no other

character has to be detected in order to accept it as a valid first character;

2. The maximum period allowed between receipt of first or second character of the three escape character

sequence and receipt of the next;

3. The minimum period, after receipt of the last character of the three escape character sequence, during

which no other character has to be detected in order to accept the escape sequence as a valid one.

Read command returns the current value of S12 parameter. The format of the numbers in output is always 3

digits, left-filled with 0s.

Syntax

Command Command type

ATS12=[<char>] Set

ATS12? Read

Parameters and Values

<time> Expressed in fiftieth of a second.

20-255 Default: 50.

Notes

 The minimum period S12 has to pass after CONNECT result code too, before a received character is

accepted as valid first character of the three escape character sequence.

 Reference: V.25ter.

Delay to DTR Off S25

Set command defines the amount of time, in hundredths of second, that the device ignores the DTR for taking the

action specified by command &D.

Read command returns the current value of S25 parameter. The format of the numbers in output is always 3

digits, left-filled with 0s.

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