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Motorola 326X V.34 User Manual

Page 104

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5-12 Using the AT Automatic Calling Interface

Using the

A

T

ACU

S-Register 5—Backspace Character

This S-Register determines the decimal value of the backspace character. The default
setting, 08, translates to the ASCII (backspace) character. Values greater than
32 (except 127) disable the backspace function.

S-Register 6—Wait for Dial Tone

If Call Progress is set to 0, 1, or 3 (ATX0, ATX1, ATX3), and blind dial is selected,
the modem does not look for a dial tone. Instead, the modem goes off-hook and waits
for the number of seconds specified by S-Register 6 before blind dialing a telephone
number (if Blind Dial is set to S6, AT

*

BD2). This S-Register does not affect the

wait dial modifiers W, w, or :.

S-Register 7—Wait for Data Carrier

If Call Timeout (AT

*

TT) is set to S7, the value of S-Register 7 determines the

number of seconds that the modem waits for a carrier signal from the remote modem
after dialing or answering a call.

S-Register 7 also affects the dial modifiers @, W, w, and :.

Dial Modifier “@”
If Call Timeout (AT

*

TT) is set to S7, the value of S-Register 7 determines the

length of time for which the @ dial modifier instructs the modem to detect five
seconds of silence.

Dial Modifier “W”, “w”, and “:”
If the Dial Wait option (AT

*

DD) is set to S7, the value of S-Register 7 determines

the value of the dial wait modifier. The dial wait modifier determines how long the
modem waits for a second dial tone after the modem has dialed a number.

Stored in Nonvolatile Memory?:

No

Status-Only?:

No

Default Setting:

8

Range:

0 to 127

Stored in Nonvolatile Memory?:

Yes

Status-Only?:

No

Default Setting:

2

Range:

1 to 255 (seconds)

Stored in Nonvolatile Memory?:

Yes

Status-Only?:

No

Default Setting:

30

Range:

1 to 255 (seconds)