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APPENDIX A: AT COMMAND SET DEFINITY Communications System
7400B Data Module
Page A-10 User’s Guide
Command:
X
Function:
Control the extended result code set and dialing capabilities.
Type:
configuration
Arguments:
The X command accepts one of 5 arguments as follows:
0 - The basic result code set (0—4) is enabled. No dial tone or busy
signal detection. No speed indication on connect.
1 - Result codes 0—5, 10—12, and 14 are enabled. No dial tone or
busy signal detection. Speed indication on connect.
2 - Result codes 0—6, 10—12, and 14 are enabled. Wait for dial tone
before dialing. Call is aborted if dial tone is not detected within
length of time in S7. No busy signal detection. Speed indication on
connect.
3 - Result codes 0—5, 7, 10—12, and 14 are enabled. No dial tone
S-Register:
Example:
Comments:
detection. Busy signal detection enabled. Speed indication on
connect.
4 - Result codes 0 - 7, 10 - 12, and 14 are enabled. Blind dialing
capability is disabled. Speed indication is provided when a
connection is established. Busy signal detection and dial tone
detection are enabled (see comments). This is the factory-default
setting.
Bits 4, 5, and 6 of S22 are set according to the argument given with the
X
command.
atx2
[ Enter ]
In the example, the results described under argument value 2 are
implemented. Regardless of which argument is used, the data module
will wait until the call is completed, or the time set in register S7
expires. All arguments do change the appropriate bits in S22 and
affect the result codes returned.
See Also:
Chapter 4, “Operation and Configuration”; result codes in either
Chapter 4 or Appendix D, “Summary Tables;” the Q and V
commands in this appendix.