Case Communications syncro 1496, Reference Manual

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X Response Codes
Response codes are sent by the modem in response to commands.
This command is used:
– to turn off modem response codes which cannot be interpreted
by the command port DTE's operating software.
– to allow a telephone number to be dialled without waiting for
dial tone or absence of busy tone.
X0 The modem ignores network tones: when a connection
is established, the speed of connection is not indicated.
X1 The modem ignores network tones, but displays the
connection speed.
X2
The modem detects dial tone, and displays the
connection speed.
X3 The modem detects busy tone, and displays the
connection speed.
X4
The modem detects busy and dial tones, and displays
the connection speed.
X5 The modem detects busy and ringback tones, and
displays the connection speed.
X6
The modem detects busy, dial and ringback tones, and
displays the connection speed. Default.
With X0 , X1 , X3 or X5 set, the modem does not look for dial tone.
With X0 , X1 or X2 set, the modem does not look for busy tone.
In the following table, asterisks under each
X
command indicate
the response codes that will be sent. Whether these are in terse or
verbose form is determined by the
V command. The modem can
send not only standard responses, but also extra responses when
the
/S1
command is set.
X450-310851 Issue 2 8-24 Rev.0