Western Telematic Data/FaxModem manual Default Function

S-Registers

Register

Default

Function

S10

Although it is not recommended to connect to a line

(continued)

with call waiting, the S10 register can be adjusted

upward to prevent the modem from misinterpreting

the second call signal as a remote disconnect. If call

waiting is a problem, it is preferable to contact your

phone company to determine the command to

temporarily disable call waiting (typically *70W).

For example: ATDT *70W phone number.

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

when the 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, autodial the

number stored in NVRAM at

position 0.

4

16

At Power On/Reset, autodial the

number stored in NVRAM at

position 0.

5

32

Reserved

6

64

Reserved

7

128

Disconnect on escape code.