Frs - Receive Silence; Ftm - Transmit Facsimile; Table 4-2. Fax Class 1 And Fax Class 1.0 Modulation Modes And Rates - Conexant H08-15355F Reference Manual

4.2.2.3 +FRS - Receive Silence

This command causes the modem to listen and report an OK result code when silence has been detected on the line for the
specified period of time. This command will terminate when the required period of silence is detected or when the DTE sends
the modem another character other than XON or XOFF, which is discarded. In either event, the OK result code is returned.
This command is aborted if any character is received from the DTE after receipt of the command but before the time delay
elapses. In this case, the modem discards the aborting character and issues an OK result code.
Syntax
+FRS =<time>
Defined Values
<time> Decimal number from 0 (default) to 255 which specifies the length of time in 10-ms intervals to delay
before responding with the OK result code after detecting silence on the line.
Result Codes
OK Reported when silence has been present on the line for the specified amount of time or when the
DTE sends the modem a character other than XON or XOFF.
ERROR <value> is invalid or this command is issued while the modem is on-hook.
Reporting Supported Range of Parameter Values
Command: +FRS=?
Response: +FRS: <time> range
Example: +FRS: 0-255

4.2.2.4 +FTM - Transmit Facsimile

This command causes the modem to transmit data using the modulation defined below. When a valid <mod> value is
entered, the modem transmits the proper training sequence in the selected mode, followed by constant 1 bits until data is
received from the DTE. The modem also returns the CONNECT result code at the beginning of the training sequence.
Syntax
+FTM=<mod>
Defined Values
<mod> Decimal number corresponding to the selected modulation mode and data rates shown in Table 4-2.
<mod>
3
24
48
72
73
74
96
97
98
121
122
145
146
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Command Reference Manual

Table 4-2. Fax Class 1 and Fax Class 1.0 Modulation Modes and Rates

Modulation
V.21
V.27 ter
V.27 ter
V.29
V.17
V.17
V.29
V.17
V.17
V.17
V.17
V.17
V.17
Training
300 bps
2400 bps
4800 bps
7200 bps
long 7200 bps long
short 7200 bps short
9600 bps
long 9600 bps long
short 9600 bps short
long 12000 bps long
short 12000 bps short
long 14400 bps long
short 14400 bps short
Conexant
Modulation Mode and Rate
4-5