Comtrol AT Commands - Manual (Page 170)

AT Commands for CX81801/CX06833/CX81300/CX06827 Modems Reference Manual
Conexant 102184B
4-16
+FIT - DTE Inactivity Timeout
This command specifies a DTE inactivity timeout value that allows the modem to break
away from an unsuccessful connection attempt at any stage of a facsimile transfer. The
DTE inactivity timer operates only while the modem is off-hook.
Syntax
+FIT=,
Defined Values
The parameter indicates the DTE inactivity timeout in
seconds. The value of 0 indicates that timeout is disabled
(default). The required timeout range is 1 to 255 seconds. The
inactivity timer starts when the modem has taken some action
that requires DTE response. If the DTE does respond, the
modem resets the inactivity timer. Inactivity timer related
events are listed in Table 4-3.
The parameter has two meanings.
0
Upon timeout, the modem will go on-hook,
executing an implied ATH command; then reset
to
+FCLASS=0.
1 Upon timeout, the DCE will only go on-hook.
Reporting Current or Selected Values
Command: +FIT?
Response: +FIT: ,
Example: +FIT: 0,0 For the default settings.
Reporting Supported Range of Parameter Values
Command: +FIT?
Response: +FIT: ( range), ( range)
Example: +FIT: (0-255),(0-1)
Table 4-3. Inactivity Timer Start and Stop Events
On-line state Start timer event Stop timer event
Waiting for a command modem sends final result code DTE sends AT or “at”
Waiting for transmit data modem sends CONNECT after
+FTM or +FTH command DTE sends data
Waiting for transmit data modem sends or sets CTS ON DTE sends data
Waiting to deliver
received data modem sends after +FRM or
+FRH command
DTE sends
Waiting to deliver
received data DTE sets V.24 Ckt 133 OFF after
+FRM or +FRH command DTE sets V.24 Ckt 133
ON