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Chapter 4 - V.22bis Commands
Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide 36
Summary of S-Parameter Defaults
Register Function Range/Units Default*
S0 Rings to Auto-Answer 0-255 rings 0
S1 Ring Counter 0-255 rings 0
S2 Escape Character 0-255 ASCII 43
S3 Carriage Return Character 0-127 ASCII 13
S4 Line Feed Character 0-127 ASCII 10
S5 Backspace Character 0-255 ASCII 8
S6 Wait Time before Blind Dialing or for Dial Tone 2-255 s 2
S7 Wait Time for Carrier, Silence, or Dial Tone 1-255 s 50
S8 Pause Time for Dial Delay Modifier 2-255 s 2
S9 Carrier Detect Response Time 1-255 0.1 s 6
S10 Lost Carrier To Hang Up Delay 1-255 0.1 s 14
S11 DTMF Tone Duration 50-255 0.001 s 85
S12 Escape Prompt Delay (EPD) 0-255 0.02 s 50
S14 General Bit Mapped Options Status 138 (8Ah)
S16 Test Mode Bit Mapped Options Status 0
S19 Reserved 0
S20 Reserved 0
S21 V.24/General Bit Mapped Options Status 52 (34h)
S22 Speaker/Results Bit Mapped Options Status 117 (75h)
S23 General Bit Mapped Options Status 0
S24 Sleep Inactivity Timer 0-255 s 0
S25 Delay to DTR Off 0-255 s or 0.01 s 5
S26 RTS-to-CTS Delay 0-255 0.01 s 1
S27 General Bit Mapped Options Status 73 (49h)
S28 General Bit-Mapped Options Status 0
S29 Flash Dial Modifier Time 0-255 10 ms 70
S30 Disconnect Inactivity Timer 0-255 10 s 0
S31 General Bit-Mapped Options Status 192 (C0h)
S36 LAPM Failure Control 7
S38 Delay Before Forced Hangup 0-255 s 20
S39 Flow Control Bit Mapped Options Status 3
S40 General Bit-Mapped Options Status 104 (68h)
S41 General Bit-Mapped Options Status 195 (C3h)
S86 Call Failure Indication 0-26 21
S91 PSTN Transmit Attenuation Level 0-15 dBm 10 (Country
dependent)
S95 Extended Result Codes Control 0
* Default values may be modified using patch code.