Cabletron Systems CSMIM-T1 Installation Manual page 168

Chapter 7: AT Commands and Registers
:Tn? Where n is an integer from 0 to 29, indicating a :T register.
Displays the contents in decimal form only of register "n".
Register Descriptions
S0=n Ring to Auto-Answer On
Range: 0 - 255 rings
Default: 1 ring (auto-answer enabled)
Sets the number of rings required before the modem answers.
ATS0=0 disables auto-answer.
The modem ignores ring signals for 5 seconds after disconnect.
S1= n
Ring Counter
Range: 0 - 255 rings
Default: 0 rings
Keeps a running total of the number of rings that occur before
the modem answers a call. If no ring occurs within 8 seconds
after the last ring, the ring counter resets to 0.
The modem ignores ring signals for 5 seconds after disconnect.
S2= n
Escape Code Character
Range: 0 - 255, ASCII decimal
Default: 43 (+)
Sets the character used for the three-character escape code
sequence. When the modem is in connect state and receives the
escape code sequence, it enters command state. Setting register
S2 to 0 disables the escape code character. See register S12 to
set the guard time that brackets the escape code character.
The modem does not store this register with &W; enter *W to save it.
S3= n Carriage Return Character
Range: 0 - 127, ASCII decimal
Default: 13 (carriage return)
Sets the character recognized as a carriage return. The carriage
return terminates command lines and result codes.
The modem does not store this register with &W; enter *W to save it.
7-42 CSMIM-T1 Hardware Installation Guide