S-Registers; S-Register Summary - Multitech MultiModemISDN MTA128ST-USB User Manual

S-Registers

S-registers are sections of memory in which values are stored that affect how the MTA128ST-
USB operates. S-registers are so-called because each has a name that begins with the character
S. Use the S command to assign a value or to read the current value of an S-register. To assign a
value to an S-register, use the command Sr=n, where r is the register number, and n is the value
you want to assign, e.g., S7=45. To read an S-register value, use the command Sr?, where r is
the register number, e.g., ATS7?.

S-Register Summary

S-Register
MTA128ST-USB
Chapter 4 - AT Commands, S-Registers and Result Codes
Function
S0 Rings Until Answer
S1 Ring Count
S2 Escape Character
S3 Carriage Return Character
S4 Line Feed Character
S5 Backspace Character
S7 Wait for Connection (Abort Timer)
S8 Pause Time for Comma
S10 DCD Drop Time
S25 DTR Drop Time
S30 On-line Inactivity Timer
S31 Maximum Redial Timeout Value
S32 Escape Sequence Timeout
S34 Maximum Escape Sequence Length
S44 POTS Port Ring Frequency
S45 Use Dial Tone from Central Office
S46 Pulse-Dial Recognition
S49 POTS Port Dial Tone Gain
S50 Caller Line ID (CLI)
S51 POTS Port Dial Tone Suppression
S52 Auto-Protocol Detection
S53 Maximum Frame Size (X.75)
S54 Force 56 Kbps B-Channel Data Rate
S55 POTS Port Call Control
S56 Calling Party Number IE Settings
S57 Called Party Number IE Settings
S58 Client-Side Authentification Protocol Negotioation
S59 Dynamic Bandwidth Allocation (DBA) Scheme
S60 Bandwidth-on-Demand (BOD) High Threshold
S61 Bandwidth-on-Demand High Throughput Threshold
S62 Bandwidth-on-Demand (BOD) Low Threshold Sampling Period
S63 Bandwidth-on-Demand (BOD) Low Throughput Threshold
S64 Call Bumping (CB)
S65 POTS Call Bump Forwarding Delay
S66 Country Selections for POTS Ring Signal
S67 Single or Dual Cadence Ring Signal
S68 First Active Duration
S69 First Idle Duration
S70 Second Active Duration
S71 Second Idle Duration
S73 MultiLink Endpoint Discriminator Type
S75 Maximum V.110 Buffer Size
S76 V.110 Network rate
S77 V.110 Network Rate Control
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