<
1/0
>.<
1/0
>
in data. This may be used to prevent unbound expansion of data that contains
many
<
1/0
>
patterns.
Syntax
+
FDD=
<
value
>
Defined Values
<value> Decimal number corresponding to the selected option. For modem
decode of <DLE><SUB>, the defined range are:
0 <DLE> <DLE> or discard (default and only)
1 <DLE> <DLE> (not supported)
For modem encoding of <1/0> <1/0>the defined values are:
0 <DLE> <DLE> <DLE> <DLE> (default and only)
1 <DLE> <SUB> (not supported)
Reporting Current or Selected Values
Command: +FDD?
Response: +FDD: <value>
Example: +FDD: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +FDD=?
Response: +FDD: (<value> range)
Example: +FDD: (0)
+
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=
<
time
>
,
<
action
>
Defined Values
<
time
>
The
<
time
>
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.
<
action
>
The
<
action
>
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:
<
time
>
,
<
action
>
Example:
+
FIT: 0,0 For the default settings.
Reporting Supported Range of Parameter Values
Command:
+
FIT?
Response: +FIT: (<time> range), (<action> 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
