Multi-Tech Systems MT5600BA-V92 Manuale Utente

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Chapter 3 – Voice Commands 
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G) 
32 
 
Command:  +VIT 
Voice Inactivity Timer (DTE/Modem) 
Description:
 
This command sets the modem’s initial value for the DTE/modem inactivity timer. 
 Syntax: 
+VIT=<timer>
 
 
Values:
 
<timer>  
Decimal number corresponding to the time in units of 1.0 second. 
 
 
A value of 0 disables the timer. Range = 0-255. 
Default: 
0
 
Report Commands:
 
+VIT? 
Reports current of selected values.  
 
+VIT=? 
Reports supported range of parameter values. 
 
 
Command:  +VLS 
Analog Source/Destination Selection 
Description: 
This command causes the modem to select one or more source/destinations of the analog 
data.  
 
 
Syntax: +VLS=<label> 
Values: 
<label>  
Decimal number corresponding to the selected analog source/destination 
hardware configuration.   
Default: 
0
 
Report Commands:
 
+VLS? 
Reports current of selected values.  
 
+VLS=? 
Reports supported range of parameter values. 
 
 
Report Query Response: <label>,<devices>,<transmit event>,<receive 
event>,<idle event> 
 
 
Where each event subparameter is a hex number the represents an event 
bit field of the reporting capabilities of each state. (See the Table Command 
Options on the next page): 
 
 
<label>  
Identifies the modem analog source/destination hardware 
configuration. 
 
 
<devices>  
A <string constant> made up of Primitives. 
  
<xxxx 
event> 
<transmit event>, <receive event>, and <idle 
event>subparameters are the DCE event reporting 
capabilities for the Voice Transmit State, Voice Receive 
State, and the Voice Command State, respectively. Each 
of the event reporting subparameters is a hex number that 
represents an event bit field. The hex number format is 
defined in Table 5-6); a one in the bit field indicates that 
the DCE can report the associated event. 
 
 
Each of the possible hardware configurations has its own <label>, ..., <idle 
event> description line (the above form description shows just one). A 
<CR><LF> terminates each description line. 
+VLS Example: 
 AT+VLS=? 
  
0,””,B0804100,B0804100,B0804100 
  
1,”T”,0B8433C1,0FE431C1,0B8431C1 
  
2,”L”,08800300,0CE00100,08800100 
  
3,”LT”,0B8433C1,0FE431C1,0B8431C1 
  
4,”S”,00800300,04E00100,20800100 
  
5,”ST”,0B8433C1,0FE431C1,0B8431C1 
  
8,”S1",00800300, 
04E00100,20800100 
  
9,”S1T”,0B8433C1,0FE431C1,0B8431C1 
  
11,”M1",00800300,04E00100,20800100 
  
14,”H”,00800300,04E00100,20800100 
  
18,”M1S”,00800300,04E00100,20800100 
  
19,”M1S1",00800300,04E00100,20800100 
Result Codes:
 
 
OK <label> = 0-5,8-9,11,14,18-19. 
 
ERROR  The <label> value is out of range, or if the modem cannot service the request in 
the <label> subparameter.