3Com U.S. Robotics 56K Voice User Manual page 79

+FTH=n Transmits data framed in the HDLC protocol using the
modulation specified by n.(n = 3, 24, 48, 72, 96, 97, 98,
121, 22, 145, or 146)
Note: See the "Screen Messages" table at the end of
this section for an explanation of messages that appear
in response to this command.
+FRH=n Receives data framed in the HDLC protocol using the
modulation specified by n.(n = 3, 24, 48, 72, 96, 97, 98,
121, 122, 145, or 146)
Note: See the "Screen Messages" table at the end of
this section for an explanation of messages that appear
in response to this command.
Displayed Displayed
as a number in words
0 OK
1 CONNECT
2 RING
altering ring.
3 NO CARRIER
4 ERROR
5 NO DIAL
TONE
6 BUSY
64 CONNECT/
FAX
Technical Reference
Screen Messages
Description
The previous command has been
processed successfully.
The modem has just connected to
another modem.
Reports the receipt of a network
No carrier is being received from the
modem.
The previous command line has not
been recognized or was completed
abnormally.
(Optional) Dial tone was not received
within the time-out period.
(Optional) A busy signal was deleted.
(Optional) The modem has established
a fax connection. This response is used
only when the fax mode is selected.
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