User's Manual

5634RCS User’s Manual
12
program to make data calls, you may not see these responses because your software
program will probably intercept the responses.
Response sets
Modem responses can come from one of five response sets. These response sets are
designed
X0
,
X1
,
X2
,
X3
, and
X4.
The response sets determine which modem responses are sent by the modem. They also
define certain dialing characteristics and how the modem handles dial tones and busy
signals, as described in the following sections.
2.9 Word or numeric responses
Modem responses can appear as words or numbers. Your modem is set up to return word
responses. Word responses are followed by a carriage return and line feed.
If your modem is operating under an application that handles character strings inefficiently
or cannot handle them at all, you can use the
V0
command to switch to numeric modem
responses. Numeric responses are followed by a carriage return only.
If you do not want to receive modem responses at all, you can use
Q1
command to
disable them. You may want to disable responses entirely if your modem is connected to a
printer and you do not want the modem responses printed.
2.9.1 X0 response set
The
X0
response set consists of the first five responses in Table 2-1. with this response
set, you receive the
CONNECT
response for all connections, regardless of the speed at
which they're made.
When you send a Dial command line with this response set in effect, the modem will wait
two seconds after receiving your Dial command, then automatically dial the telephone
number whether or not a dial tone is present This is known as "blind dialing." You may
want to use blind dialing if you will be using the modem in an area that has an irregular or
weak dial tone that your modem cannot always detect.
2.9.2 X1 response set
The X1 response set consists of the all responses in Table 2-1, except
NO DIALTONE,
BUSY
and
NO ANSWER.
When you send a Dial command with this response set in effect,
your modem will blind dial call.
2.9.3 X2 response set
The X2 response set consists of all responses in Table 2-1, except
BUSY
and
NO
ANSWER
.