Technical Reference

Register

Default

Function

 

 

S10

14

Sets the duration, in tenths of a second, that the modem

 

 

waits to hang up after loss of carrier. This guard time

 

 

allows the modem to distinguish between a line

 

 

disturbance from a true disconnect (hang up) by the

 

 

remote modem.

 

 

 

 

Note: If you set S10 = 255, the modem will not hang up

 

 

when carrier is lost. Dropping DTR hangs up the modem.

S11

70

Sets the duration and spacing, in milliseconds, for tone

 

 

dialing.

 

 

S12

50

Sets the duration, in fiftieths of a second, of the guard time

 

 

for the escape code sequence (+++).

S13

0

Bit-mapped register. Select the bit(s) you want on and set

 

 

S13 to the total of the values in the Value column. For

 

 

example, ATS13 = 17 enables bit 0 (value is 1) and bit 4

 

 

(value is 16).

 

 

 

 

Bit

Value

Result

 

 

0

1

Reset when DTR drops.

 

 

1

2

Reset non-MNP transmit buffer from

 

 

 

 

1.5K to 128 bytes.*

 

 

2

4

Set backspace key to delete.

 

 

3

8

On DTR signal, auto dial the number

 

 

 

 

stored in NVRAM at position 0.

 

 

4

16

At power on/reset, auto dial the

 

 

 

 

number stored in NVRAM at position

 

 

 

 

0.

 

 

 

5

32

Reserved

 

 

6

64

Disable quick retrains.

 

 

7

128

Disconnect on escape code.

66 56K Voice Faxmodem Internal - User’s Guide

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3Com 1.024.1644-00 manual Default Function, Bit Value Result