AT |
Options / Details |
Chipset / Protocol |
+++ |
Escape Code |
All |
A/ |
Repeat Last Command |
All |
A> |
Continuously Repeat Command |
USR |
AT |
Command Mode Prefix |
All |
AT#CID=n |
n=0 Disable caller ID n=1 Enable caller ID in readable
format n=2 Enable caller ID in HEX format |
Must have feature #142. Type ATi10 |
AT$ |
HELP, Command Summary |
USR |
AT%Cn |
n=0 Data compression disable n=1 MNP5 enable n=2 V.42
enable n=3 V.42bis and MNP5 |
V.34, Rockwell, Compression selection |
AT%En |
n=0 Do not request retrain n=1 Enable monitoring and
retraining if line is bad n=2 Enable monitoring and
retraining if line is bad, wait one minute before
renogotiating higher speed |
V.32 retraining |
AT%Fn |
n=1 Select 75Tx/1200Rx n=2 Select 100Tx/75Rx n=3 Select
V.23 half-duplex |
Optional feature #121. Data echo options |
AT%Gn |
n=0 Disable V.32bis rate negotiation n=1 Enable V.32bis rate
negotiation |
V.32 Initiation of rate renegotiation |
AT%L |
Report received signal level 009=-9 dBm (or more)
010=-10 dBm etc. 043=-43 dBm (or less) |
Rockwell. Returns value representing signal level in -dBm. The
smaller the number, the better the connection. |
AT%Q |
Report line signal quality Range of 0-128 |
Rockwell. Lower the number, better the line. Reading is
instantanteous, repeat serveral times for acurate reading. |
AT&$ |
HELP, Ampersand Commands |
USR |
AT&An |
n=0 Disable /ARQ Result Codes n=1 Enable /ARQ Result Codes
n=2 Enable /Modulation Codes n=3 Enable /Extra Result Codes
|
Result codes-All |
AT&Bn |
n=0 Floating DTE Speed n=1 Fixed DTE Speed n=2 DTE Speed
Fixed When ARQ |
DTE speed variables |
AT&Cn |
n=0 DCD Always On n=1 Modem Controls DCD |
Data Carrier Detect |
AT&Dn |
n=0 Ignore DTR n=1 On-Line Command Mode n=2 DTE Controls
DTR n=3 Reset modem (ATZ) |
Select modem reaction to DTR. Works with &Q command |
AT&Fn |
n=0 Load Factory 0, no FC n=1 Load Factory 1, HW FC n=2
Load Factory 2, SW FC |
Load Factory Default |
AT&Gn |
n=0 No Guard Tone n=1 550 Hz Guard Tone n=2 1800 Hz
Guard Tone |
Guard Tone |
AT&Hn |
n=0 Disable TX Flow Control n=1 CTS n=2 Xon/Xoff n=3
CTS and Xon/Xoff |
USR, serial port flow control |
AT&In |
n=0 Disable RX Flow Control n=1 Xon/Xoff n=2 Xon/Xoff
Chars Filtered n=3 HP Enq/Ack Host Mode n=4 HP Enq/Ack
Terminal Mode n=5 Xon/Xoff for non-ARQ Mode |
USR, serial port flow control |
AT&Kn |
n=0 Disable Data Compression n=1 Auto Data Compression
n=2 Enable Data Compression n=3 Selective Data Compression
|
USR, data compression control |
AT&Kn |
n=0 Disable flow control n=3 Enable bi-directional hardware
(RTS/CTS) flow control n=4 Enable software (XON/XOFF)
n=5 Enable trnasparent flow control n=6 Enable both hardware
and software flow control |
Rockwell, serial port flow control |
AT&Mn |
n=0 Normal Mode n=4 ARQ/Normal Mode n=5 ARQ Mode |
USR Asynchronous/Synchnous mode |
AT&Nn |
n=0 Highest Link Speed n=1 300 bps n=2 1200 bps n=3
2400 bps n=4 4800 bps n=5 7200 bps n=6 9600 bps n=7
12000 bps n=8 14400 bps n=9 16800 bps n=10 19200 bps
n=11 21600 bps n=12 24000 bps n=13 26400 bps n=14
28800 bps n=15 31200 bps n=16 33600 bps |
USR |
AT&Pn |
n=0 N.American Pulse Dial n=1 UK Pulse Dial |
USR pulse dial selection |
AT&Pn |
n=0 N.American Pulse Dial (39%/61% and 10PPS) n=1
UK/Hong Kong Pulse Dial (33%/67% and 10PPS) n=2 39%/61% and
20PPS n=3 33%/67% and 20 PPS (Japan) |
Rockwell make/break ratio for pulse dial |
AT&Q |
n=1 Synch mode 1 n=2 Synch mode 2, dial stored number
when DTR makes transition n=3 Synch mode 3, manual dialing
n=4 Reserved n=5 Reliable Asynch mode n=6 Normal Asynch
mode |
Rockwell asynch/synch mode Same as &M, depending on
&F |
AT&Rn |
n=1 Ignore RTS n=2 RX to DTE/RTS high |
USR |
AT&Sn |
n=0 DSR Always On n=1 Modem Controls DSR |
USR |
AT&Tn |
n=0 End Test n=1 Analog Loopback (ALB) n=3 Digital
Loopback (DLB) n=4 Grant Remote DLB n=5 Deny Remote DLB
n=6 Remote Digital Loopback n=7 Remote DLB With Self Test
n=8 ALB With Self Test |
USR |
AT&Un |
n=0 Variable link rate floor. n=1 Minimum link rate 300 bps
n=2 Minimum link rate 1200 bps n=3 Minimum link rate 2400
bps n=4 Minimum link rate 4800 bps n=5 Minimum link rate
7200 bps n=6 Minimum link rate 9600 bps n=7 Minimum link
rate 12000 bps n=8 Minimum link rate 14400 bps n=9 Minimum
link rate 16800 bps n=10 Minimum link rate 19200 bps n=11
Minimum link rate 21600 bps n=12 Minimum link rate 24000 bps
n=13 Minimum link rate 26400 bps n=14 Minimum link rate
28800 bps n=15 Minimum link rate 31200 bps n=16 Minimum link
rate 33600 bps |
USR |
AT&V |
Display configuration information |
Rockwell |
AT&Wn |
n=0 Store Configuration 0 n=1 Store Configuration 1 |
All |
AT&Yn |
n=0 Destructive n=1 Destructive/Expedited n=2
Nondest./Expedited n=3 Nondest./Unexpedited |
All |
AT&Zn=s |
Store Phone Number |
All |
AT&Zn? |
Query Phone Number |
|
AT)Mn |
n=0 Adust transmit level if remote is set to )M1, otherwise
-10 dBm n=1 Will try to adust power leve to less than -10
dBm with MNP 10 |
Optional feature #144. Transmit level adjustment for cellular
connection. |
AT*B |
Display blacklisted numbers as defined by country requirements.
|
optional feature #123. Used by countries that have permanently
forbidden numbers. |
AT*C |
Set configuration password |
Optional feature #124 |
AT*E |
Exit secure access remote configuration |
Optional feature #124 |
AT*Hn |
n=1 Negotiate at highest supported speed n=2 Negotiate link
at 1200bps n=3 Negotiate link at 4800bps |
Link Negotiation Rate |
AT*L |
List callback security passwords |
Optional feature #124 |
AT*NC? |
Display country specific configurations |
Optional feature #120 |
AT*NCn |
n=ID of specific country |
Optional feature #120 |
AT*Pn:word: |
n=0-19 passwords and tel. numbers |
Optional feature #124 |
AT*R |
Activate remote configuration mode. |
Optional feature #124, works with *C |
AT*R |
Request secure access mode |
Optional feature #124 |
AT+FAA=n |
n=2 Activate silent answer for class 2 fax n=4 Activate
silent answer plus for class 2 fax |
|
AT+FAE=n |
n=1 Activate Adaptive Answer n=3 Activate silent answer for
class 1 fax |
|
AT+MS |
Modulation control ,,, |
V.34 only |
AT+MS= |
n=0 Automode Disabled n=1 Automode enable using V.8 or
V.32bis Annex A |
V.34 only. Automode does not work with Bell 212 |
AT+MS= |
28800,26400 etc. default for V.34 is 28800 |
V.34 only |
AT+MS= |
300,1200,2400 etc. default for V.34 is 300bps |
V.34 only |
AT+MS= |
n=0 V.21, 300bps n=1 V.22, 1200bps n=2 V.22bis,
1200/2400 n=3 V.23 bisynch 75/1200 n=9 V.32, 4800/9600
n=10 V.32bis, 4800/7200/9600/12000/ 14400 n=11 V.34,
2400/4800/7200/9600/ 12000/14400/16800/ 19200/24000/26400/
28800 n=64 Bell 103, 300bps n=69 Bell 212, 1200bps
n=74 V.FC, 14400/16800/ 19200/24000/26400/ 28800 |
V.34 only |
AT+MS? |
Reports MS options |
V.34 only |
AT-B |
Forced fallback to 1200 |
Optional feature #143 |
AT-Cn |
n=0 MNP 10 enabled, sync mode n=1 MNP 10 enabled, asynch
mode n=2 MNP 2 enabled n=3 MNP 3 enabled |
Optional feature #143 |
AT-Kn |
n=0 Do not convert LAPM to MNP n=1 Convert LAPM connection
to MNP 10 n=3 Enable MNP 10 extended services detection
|
Optional feature #143 |
AT-Qn |
n=0 Enable fallback to V.22/V.22bis n=1 Disable fallback |
Optional feature #143 |
AT-Un |
n=0 Allow attenuation to -10 dBm n=1 Allow attenuation to
-18 dBm n=2 Allow attenuation to -22 dBm n=3 Allow
attenuation to -25 dBm n=4 Force 2400 bps transmit level to
-10 dBm n=5 Force 2400 bps transmit level to -18 dBm
n=6 Force 2400 bps transmit level to -22 dBm n=7 Force
2400 bps transmit level to -25 dBm |
Optional feature #143. Forced transmit level change during fall
forward |
ATA |
|
Hayes - Answer Phone Line |
ATBn |
n=0 V32/CCITT 1200b[s n=1 Bell Standard 212A 1200bps n=2
V.23 originate: T75/R1200 when DTE speed is 1200 bit/second.
V.23 answer: T75/R1200 when DTE speed is 1200 bit/second.
n=3 - V.23 originate: T1200/R75 when DTE speed is 1200bps.
V.23 answer: T1200/R75 when DTE speed is 1200BPS. n=6
V.26 bis when line speed is 1200bps n=15 V.21 when line speed is
300bps n=16 Industry Standard 103 when speed is 300 bps.
n=30 V.22 bis when speed is 2400bps n=32 V.26 bis when speed
is 2400bps n=41 V.32 when line speed is 4800bps n=52 V.32
bis when speed is 7200bps n=60 V.32 when speed is 9600bps
n=64 V.FC when speed is 9600bps n=70 V.32 bis when handshake
begins at 12000 bps. n=71 V.FC when handshake begins at
12000 bit/second. n=75 - V.32 bis when handshake begins at 14400
bit/second. n=76 - V.FC when handshake begins at 14400
bit/second. n=81 - V.FC when handshake begins at 16800-28800
bit/second. |
Hayes - Communications options |
ATD$ |
HELP, Dial Commands |
USR |
ATDL |
Dial Last Phone Number |
USR/Rockwell |
ATDn |
Dial a Telephone Number n=0..9#*TPR,;W@!()- |
All |
ATDSn |
Dial Stored Phone Number |
USR/Rockwell |
ATEn |
n=0 No Command Echo n=1 Echo Command Chars |
All |
ATFn |
n=0 Online Echo n=1 No Online Echo |
USR |
ATFn |
n=0 Best possible auto-detect, same as ATN1 n=1 V.21 or
Bell 102 300bps n=3 V.23 n=4 V.22 or Bell 212A 1200bps
n=5 V.22bis 2400bps n=6 V.32bis or V.32 4800bps n=7
V.32bis 7200bps n=8 V.32bis or V.32 9600bps n=9 V.32bis
12,000bps n=10 V.32bis 14,400bps n=13 V.FC 14,400 n=14
V.FC 16,800 n=15 V.FC 19,200 n=16 V.FC 21,600 n=17 V.FC
24,000 n=18 V.FC 26,400 n=19 V.FC 28,800
|
Rockwell, only used by V.FC modems Clears register S31 bit
1. F13 and F19 reccommend connection rate. |
ATHn |
n=0 On Hook (Hang Up) n=1 Off Hook |
|
Ati10 results |
Optional Features: 101=Class 1 fax 104=Class 2 fax
(TR29.2) 105=Class 2.0 fax (ITU-TSS) 115=V.17 14.4k FAX
120=WorldWide support 121=V.23 122=V.25bis
123=Blacklisting (*B and *d commands) 124=Access Security
140=V.32bis 14.4k DATA 141=Silent Answer [fax feature]
142=Caller ID 143=MNP 10 144=MNP Cellular
145=AutoSync 146=Enhanced Config Display (\S) 147=V.FC
28k 148=Volume Control L+/L- 149=V.FC 24k
|
Optional Features cont. 150=Enhanced &F option
151=Enhanced Rate Renogotiation 153=ITU-TSS V.34 28.8
154=Silent Answer Plus 157=RINGING response 160=Supra
Voice Porcession 161=Supra Voice Porcession 162=Supra Voice
Porcession 170=Handset support 171=Headset Support
180=16550 UART emulation 181=SupraSmart UART
182=Rockwell high speed interface 190=AMD flash ROM
191=ATMEL flash ROM
|
ATIn |
n=0 Product Code n=1 Checksum n=2 RAM Test n=3
Product ID string n=4 Current Settings n=5 NVRAM Settings
n=6 Link Diagnostics n=7 Product Configuration n=10
Optional features [fax, etc., see end] |
|
ATL+/-n |
+n=1-32 Increases speaker volume -n=1-32 Decreases speaker
volume |
Relative Speaker Volume-Optional feature #148 |
ATLn |
n=0 Low Speaker Volume n=1 Low Speaker Volume n=2 Med
Speaker Volume n=3 Hi Speaker Volume |
|
ATMn |
n=0 Speaker Off n=1 Speaker On Until CD n=2 Speaker
Always On n=3 Speaker Off During Dial |
|
ATNn |
n=0 Use rate in S37 n=1 Use highest possble rate |
Connection Rate |
ATOn |
n=0 Return Online n=1 Return Online & Retrain |
|
ATP |
Pulse Dial |
|
ATQn |
n=0 Result Codes Sent n=1 Quiet (No Result Codes) n=2
Verbose/Quiet On Answer |
|
ATT |
Tone Dial |
|
ATVn |
n=0 Numeric Responses n=1 Verbal Responses |
|
ATWn |
n=0 Not reported, DTE rate shown n=1 Result reported n=2
Not reported, DCE rate shown |
Error Correction Result Codes |
ATXn |
n=0 Basic Result Codes n=1 Extended Result Codes n=2
Wait for tone before dialing n=3 Ignore dial tone n=4 Wait
for tone, detect dialtone and report busy |
|
ATYn |
n=0 Next reset to &W0 settings n=1 Next reset to &W1
settings Internal Only n=2 Next Reset to &F0 settings
n=3 Next Reset to &F1 settings n=3 Next Reset to &F1
settings |
|
ATZn |
n=0 Dipswitch #7 determines reset n=1 Reset to &W0
settings n=2 Reset to &W1 settings n=3 Reset to &F0
settings n=4 Reset to &F1 settings n=5 Reset to &F2
settings |
Dipswitch is USR only |
AT\Nn |
n=0 Normal connection using flow control n=1 Direct
connection, no flow control n=2 LAPM/MNP 5,4,3, 2 (Reliable)
n=3 Autoreliable mode (LAPM or MNP) n=4 LAPM reliable mode
n=5 MNP reliable mode |
Operating Mode |
AT\S |
Display configuration information |
Optional feature #146. |