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Chapter 12 – No Prefix Commands

CDMA 1xEV-D0 AT Commands Reference Guide (Document S000482B) 50

X Result Code Select/Call Progress Control

Syntax: ATX<n>

Description: Enables tone detection options used in the dialing and handshaking process. As options

are chosen, the result codes are also affected. The prime function is to control the modem

call response capabilities when the D (Dial) command is issued.

Dial Tone Detection

When disabled, the modem waits for the period set in register S6 (Wait for Blind Dial) and

blind dials. When enabled, the modem allows five seconds to receive at least 1 second of

dial tone. If none is detected, then the result code is NO DIAL TONE.

Busy Signal Detection

When disabled, the modem waits for the period set in register S7 (Wait for Carrier). If no

connection is made, then the result code is NO CARRIER. When enabled, the modem can

return the result code BUSY if detected.

Values enable (9or disable (8) tone detection and result codes as indicated in the chart

below:

Value No Dial Tone Busy Signal

1 8 8

2 9 8

3 8 9

4 9 9 Default

Z Profile Restore

Syntax: ATZ

Description: The modem goes on-hook (drops any active call) and then resets the command and

For information on factory settings, see the Table of Stored Profile Settings later in this

manual.

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Multitech CDMA Guía de usuario Pagina 50