User`s guide

Speed Table (unit: bits/s) Appendix D - Fax/Modem Information
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Speed Table (unit: bits/s)
S Registers
Your modem has 20 registers, designated S0 through S108. The following table
shows the S-Registers, their functions, and their default values. Some registers
can have their values changed by commands. If you use a command to change a
register value, the command remains in effect until you turn off or reset your
modem. Your modem then reverts to the operating characteristics specified in its
non-volatile memory. Refer to”Chapter Three - Running BIOS Setup” for
information on how to use the AT commands to manipulate the S registers.
+FRS=n Receive silence
+FTH=n Transmit data with HDLC framin
g
+FTM=n Transmit data
+FTS=n Transmit silence
+FCLASS=n Service Class
TABLE 17. Fax Class 1 Commands