SimCom SIM7000 Series At Command Manual page 28

ATV<value> transmitted with result codes and information responses.
0
OK
Parameters
<value>
The result codes, their numeric equivalents and brief descriptions of the use
of each are listed in the following table.
Parameter Saving -
Mode
Max Response -
Time
Reference Note
V.25ter
ATV1 ATV0
OK 0
CONNECT 1
RING 2
NO CARRIER 3
ERROR 4
NO DIALTONE 6
BUSY 7
NO ANSWER 8
PROCEEDING 9
CONNECT Manufacturer-
<text> specific
SIM7000 Series_AT Command Manual_V1.03
When <value>=0
When <value>=1
0 Information response: <text><CR><LF>
Short result code format: <numeric code><CR>
1 Information response: <CR><LF><text><CR><LF>
Long result code format: <CR><LF><verbose code>
<CR><LF>
Description
Acknowledges execution of a Command
A connection has been established; the DCE is moving from
Command state to online data state
The DCE has detected an incoming call signal from
network
The connection has been terminated or the attempt to
establish a connection failed
Command not recognized, Command line maximum length
exceeded, parameter value invalid, or other problem with
processing the Command line
No dial tone detected
Engaged (busy) signal detected
"@" (Wait for Quiet Answer) dial modifier was used, but
remote ringing followed by five seconds of silence was not
detected before expiration of the connection timer (S7)
An AT command is being processed
Same as CONNECT, but includes manufacturer-specific
text that may specify DTE speed, line speed, error control,
data compression, or other status
Smart Machine Smart Decision
28 2018-05-08