Lucent Technologies Host-Based Controller Modem AT User Manual
Page 3

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.