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Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G) 54
Local Analog Loopback Test – &Tn 10
Long Space Disconnect – Yn 8
M
Make/Break Dial Ratio – &Pn 10
Maximum MNP Block Size – \An 12
Microphone Gain – +VGM 37
MNP Extended Services – -Kn 15
Modem Connection Commands
+PCW=n – Call Waiting Enable 17
+PIG=n – PCM Upstream Ignore 17
+PQC=n – Quick Connect Control 17
+PSS – Use Short Sequence 17
-QCPC – Force Full Startup Procedure Next
Connection 18
-QCPS – Enable Quick Connect Profile Save 18
Modem Reset – Zn 8
Modem-Initiated Flow Control – &En 9
Modulation Command
+MR – Modulation Reporting Control 24
Modulation Reporting Control – +MR 24
Modulation Selection – +MS= 14
Monitor Speaker Mode – Mn 6
O
Online command mode 4
P
PCM Code Selection – %U 12
PCM Upstream Ignore – +PIG=n 17
press Enter 4
Pulse Dialing – P 6
Q
Quick Connect Control – +PQC=n 17
R
Read Register Value – Sr? 7
Repeat Last Command – A/ 5
Result Code Format – Vn 7
Result Code Selection – Xn 7
Result Codes Enable/Disable – Qn 7
results codes 46, 47, 48, 49, 50
Return Online to Data Mode – On 6
Ringback Goes Away Timer – +VRA 33
Ringback Never Appeared Timer – +VRN 34
S
Program Identification Number – PRIa 41
Program Number – PRNx 41
Select DTE/Modem Interface Rate (Turn Off
Autobaud) – +VPR 36
Select Profile for Hard Reset – &Yn 11
Select Register – Sr 7
Select Voice Mode – +FCLASS=8 28
Selective Reject – +ESR 22
Send Voice Tone(s) – +VTS 30
Serial Port Baud Rate – $SBn 15
Set Current Fax Class – +FCLASS= 13
Set Register Value – Sr=n 7
Set Telephony Extension – -STE= 25
Silence Detection (Quiet and Silence) – +VSD 34
Single Line Connect Message – \Vn 13
Speaker Gain – +VGS 37
Speakerphone Commands
+VGM – Microphone Gain 37
+VGS – Speaker Gain 37
+VSP – Speakerphone ON/OFF 37
Speakerphone ON/OFF – +VSP 37
S-Registers 43
Start Modem Receive – +VRX 30
Start Modem Transmit (Playback) – +VTX 31
Store Callback Number – #CBNn 19
Store Callback Password – #CBPn 19
Store Current Configuration – &Wn 11
Store Telephone Number – &Zn 11
Sync/Async Mode – &Qn 10
Synchronous Clock Source – &Xn 11
T
Test Command
&Tn – V.54 Test Command 27
Tone Dialing – T 7
Transmit Break – \Bn 12
U
Unformatted Form Reporting – Caller ID 38
Use Short Sequence – +PSS 17
V
V.22bis Guard Tone Control – &Gn 9
V.25bis Commands
CIC – Connect Incoming Call 41
CRIs – Call Request Identification 41
CRNs – Call Request Number 41
CRSx – Call Request Address 41
DIC – Disregard Incoming Call 41
RLD – List Request of Delayed Call Number 41
RLF – List Request of Forbidden Number 42
RLI – List Identification Number 42
RLN – List Request of Stored Number 42
PRIa 41
PRNx 41
V.42 Error Correction Modes – &En 8
V.42bis Data Compression – &En 9
V.44 Compression Select – +DS44 20
V.54 Test Command – &Tn 27
V.8 / V.8bis Commands
+A8E – V.8 and V.8bis Operation Controls 40
+A8I – CI Signal Indication 40
V.8 and V.8bis Operation Controls – +A8E 40
VAL – V.25bis Response 42
View Delayed Numbers – *D 15
View Numbers in Blacklist – *B 15
Voice Commands
+VDR– Distinctive Ring 35
+VDT– Control Tone Cadence Reporting 35
+VGR – Voice Gain Receive (Record Gain) 31
+VGT – Voice Gain Transmit (Playback Volume) 31
+VIP – Voice Initialize All Parameters 30
+VIT – Voice Inactivity Timer (DTE/Modem) 32
+VLS – Analog Source/Destination Selection 32
+VPR – Select DTE/Modem Interface Rate (Turn
Off Autobaud) 36
+VRA – Ringback Goes Away Timer 33
+VRN – Ringback Never Appeared Timer 34
+VRX – Start Modem Receive 30
+VSD – Silence Detection (Quiet and Silence) 34
+VSM – Compression Method Selection 34
+VTD – Beep Tone Duration Timer 35
+VTS – Send Voice Tone(s) 30
+VTX – Start Modem Transmit (Playback) 31
Voice Configuration Commands
+FCLASS=8 – Select Voice Mode 28
+FLO – Flow Control 29
+VNH – Automatic Hang-up Control 29