5-3
from the remote is discarded. If loss of DTR is detected while &D2 is in effect, the modem goes on-hook, sends <DLE><ETX>
followed by OK result code to the DTE, and returns to command mode. If the modem detects a DTR drop while &D3 is in
effect, the modem performs a warm reset.
5.2.
COMMANDS
+FCLASS=n - Select Service Class
+FCLASS=n command sets the active service class.Parameters: 0-2
Command options:
+FCLASS=0
Select Data Mode (Default.)
+FCLASS=1
Select Facsimile Class 1
+FCLASS=2
Select Facsimile Class 2
+F<command>? - Report Active Configuration
+F<command>? interrogates the modem to determine the active configuration.Typical responses are:+FAE?
0 if auto answer is disabled; 1
if auto answer is enabled
+FCLASS?
0 if in data mode; 1 if in fax class 1; 2 if in fax class 2
+F<command>=? - Report Operating Capabilities
+F<command>=? can be used to determine the operating capabilities of the modem.Typical responses are:+FAE=?
0 or 1
+FCLASS=?
0, 1, or 2
+FTM=?
24, 48, 72, 96 (9600 bps version)
+FRM=?
24, 48, 72, 96 (9600 bps version)
+FTM=?
24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 (14400 bps version)
+FRM=?
24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 (14400 bps version)
+FAE=n - Data/Fax Auto Answer
+FAE=n allows the DTE to either restrict answering to class 1, or to automatically detect whether the calling station is a fax class 1 modem or
data modem, and answer accordingly. Parameters: n = 0 or 1
Command options:
n = 0
Disable data/fax auto answer mode. The modem answers as a fax modem only. (Default.).
n = 1
Enable data/fax auto answer mode. The modem answers as a fax or data modem.
After a data (not fax) connection is achieved (indicated by the DATA result code), the DTE must issue an ATO command to cause the
modem to go on-line.
+FTS=n - Stop Transmission and Wait
+FTS=n causes the modem to terminate a transmission and wait for n 10-ms intervals before responding with the OK result code. An ERROR
response code results if this command is issued while the modem is on-hook.
+FRS=n - Receive Silence
+FRS=n causes the modem to report back to the DTE with an OK result code after n 10 ms-intervals of silence have been detected on the
line. This command is aborted if any character is received from the DTE. The modem discards the aborting character and issues an OK result
code. An ERROR response code results if this command is issued while the modem is on-hook.
+FTM=n - Transmit Data
+FTM=n causes the modem to transmit data using the modulation defined below. An ERROR response code results if this command is
issued while the modem is on-hook.Parameters: See Command options
Command options:
+FTM=24
V.27 ter 2400 bps
+FTM=48
V.27 ter 4800 bps
+FTM=72
V.29 7200 bps
+FTM=73
V.17 7200 bps long
+FTM=74
V.17 7200 bps short
+FTM=96
V.29 9600 bps
+FTM=97
V.17 9600 bps long
+FTM=98
V.17 9600 bps short
+FTM=121
V.17 12000 bps long
+FTM=122
V.17 12000 bps short
