MultiModemISDN User Guide

 

through the serial port (either sent or received). Disable the inactivity timer

 

by setting S30=0, which is the factory default setting. S30 currently works for

 

+ all protocols EXCEPT V.110.

S-register:

S31

Function:

Maximum Redial Timeout Value

Unit:

1 minute

Range:

n=0 Does not try to redial

 

n=1–255

Default:

30 (30 minutes)

Description: Sets the maximum redial timeout value for attempts to add a second channel to a

 

MLPPP data call. Once the maximum timeout is reached, there are no further attempts

 

to redial. Re-dialing occurs if a call attempt fails due to the host being busy or not

 

answering. The first redial timeout period is 1 minute. If re-dialing fails after 1 minute,

 

the next redial timeout is 3 minutes. If re-dialing fails after 3 minutes, the next redial

 

timeout is 5 minutes. If re-dialing fails after 5 minutes, subsequent redial timeouts occur

 

every 5 minutes, up to the maximum redial timeout value (S31).

S-Register:

S32

Function:

Escape Sequence Timeout

Unit:

100 ms

Range:

0–255

Default:

20

Description: Sets the time allowed in an escape sequence from the receipt of the A in AT to the receipt

 

of the carriage return. If the S32 time interval expires before you press ENTER, the

 

escape sequence ends. The default time is 2 seconds.

S-Register:

S34

Function:

Maximum Escape Sequence Length

Unit:

Decimal ASCII code

Range:

0–10

Default:

2

Description: Sets the maximum character length of the escape sequence, not including +++AT. For

 

example, a character length of S34=2 allows two characters after +++AT (e.g.,

 

+++ATH0). Conversely, an invalid escape sequence (too many characters placed in the

 

command string) passes through as data (e.g., +++atili2). The maximum length of the

 

escape sequence is 10 characters.

S-Register:

S44

 

Function:

POTS Port Ring Frequency

Unit:

Decimal ASCII code

Range:

2–4

 

Default:

2 (25 Hz)

Description: Controls the ring frequency from the POTS port. S44=n where:

 

n=2

25 Hz ring frequency

 

n=3

20 Hz ring frequency

 

n=4

16.67 Hz ring frequency

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