56K V.92 Data, Fax, and Voice Chipset

Table 7-1. S-Register Command Descriptions (Continued)

 

 

Carriage Return Character: S3 specifies the AT command string terminator and

 

 

modem response code terminator. The factory default is a <CR> or carriage return

S3

13

(ASCII decimal 13).

 

 

 

Range: 0–127

 

 

Default: 13 (Carriage Return)

 

 

 

 

 

Line Feed Character: S4 specifies the line feed character, which is used for verbose

S4

10

(text) modem result codes.

Range: 0-127

 

 

 

 

Default: 10 (line feed)

 

 

 

 

 

Backspace Character: S5 specifies the backspace character that is used to delete

 

 

the last-entered character. After receiving a backspace character, the modem sends

S5

8

three characters to the DTE: a backspace character, a space character, and then an-

other backspace character.

 

 

Range: 0–32, 127

 

 

Default: 8 (BS)

 

 

 

 

 

Wait Before Blind Dialing: S6 specifies the amount of time that must elapse after

 

 

the modem goes off-hook before the modem starts dialing the first telephone num-

 

 

ber. The modem waits for at least 2 seconds before dialing the first number, even if

S6

2

S6 is set for a value less than 2. S6 is only used for result code type commands X0,

X1, and X3 (that is, blind-dialing types of result codes). Result code types X2 and X4

 

 

enable dial-tone detection and ignore the contents of S6.

 

 

Range: 2–255 seconds

 

 

Default: 2 seconds

 

 

 

 

 

Wait for Carrier/Dial Tone: S7 specifies the length of time that the modem waits to

 

 

detect the remote modem carrier after dialing the telephone number. If the remote

 

 

modem carrier is not detected within the S7 time limit, the modem hangs up and

 

 

sends a ‘NO CARRIER’ response code to the DTE. If the remote modem carrier is

S7

60

detected, the modem goes into online data mode and sends a “CONNECT” mes-

sage to the DTE.

 

 

 

 

S7 also specifies the time duration for the ‘@’ (wait for quiet answer) dial modifier.

 

 

Range: 1–255 seconds

 

 

Default: 60 seconds

 

 

 

 

 

Pause Time for Dial Modifier: S8 specifies the length of time that the modem paus-

 

 

es during the dialing process each time the ‘,’ dial modifier is detected in the dialing

S8

2

string.

 

Range: 0–255 seconds

Default: 2 seconds

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