4-21
Issue 3 April 1994
Table 4-1. AT Command and S-Register Reference (20 of 27)
AT
Command
or
S-Register
Description
S0=
n
Auto-Answer Ring Number
This register determines the number of rings the
modem will count before automatically answering a
call.
Acceptable ring counts vary by country and are listed
in Table 4-2.
A ring count of 0 will disable the auto answer feature.
S2=
n
AT Escape Character
This register determines the ASCII value used for an
escape sequence (+++).
Accepts an ASCII value from 0 to 127.
Factory setting is 43, an ASCII + character.
S3=
n
Carriage Return Character
This register determines the ASCII value used as the
carriage return (Enter key).
Accepts an ASCII value from 0 to127.
Factory setting is 13, an ASCII carriage return.
S4=
n
Line Feed Character
This register determines the ASCII value used as the
line feed character.
Accepts an ASCII value from 0 to 127.
Factory setting is 10, an ASCII line feed character.
S5=
n
Backspace Character
This register determines the ASCII value used as the
backspace (Backspace key).
Accepts an ASCII value from 0 to 127.
Factory setting is 08, an ASCII backspace character.
