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Data Addendum Host-Based Controller Modem
June 15, 1998 AT Command Set
AT Command Summary (continued)
Version 1.0 Lucent Technologies Inc.
3
Table 2. AT Testing and Debugging Command Set Summary
Command Description Command Description
&&C Write to/read from host interface %T94 Test external DSP RAM
&&L Line-to-line loopback %T124 Return to on-chip DSP RAM
&&R Write to/read from DSP RAM location %T125 Load K56flex image to external DSP RAM
&&S Speaker codec loopback #UD Unimodem diagnostics
Table 3. The S-Register Summary
Register Default Description
S0 0 Automatic answer ring number
S1 0 Ring counter
S2 43 AT escape character
S3 13 Command line termination character
S4 10 Response formatting character
S5 8 Command line editing character
S6 2 Wait before dialing
S7 50 Connection completion time-out
S8 2 Comma dial modifier time
S10 20 Automatic disconnect delay
S11 95 DTMF dialing speed
S12 50 Escape guard time
S14 8 General bit-mapped options status
S21 48 V.24 bit-mapped options status
S22 112 Results bit-mapped options status
S24 10 Timer to control sleep mode
S28 1 V.34 modulation enable/disable
S30 0 Inactivity timer
S32 16 Synthetic ring volume
S33 0 Synthetic ring frequency
S35 0 Data calling tone
S36 7 Negotiation fallback
S37 0 Dial line rate
S38 1 Enable/disable K56flex settings
S42* 1 Auto rate
S43* 1 Auto mode
S48 7 LAPM error control and feature negotiation
S89 10 Timer to control sleep mode
S90 10 Local phone status
S91 15 Line transmit level
S108 7 Network codec type
* S-registers 42, and 43 are for test and debugging purposes only.