Specifications

UC864-E/G/WD/WDU AT Commands Reference Guide

80304ST10041a Rev. 7 - 2010-10-14

P - Pulse Dial

ATP Set command has no effect is included only for backward compatibility

with landline modems.

Reference V25ter.

3.5.3.3.4. Answer - A

A - Answer

ATA Execution command is used to answer to an incoming call if automatic

answer is disabled.

Note: This command MUST be the last in the command line and must be

followed immediately by a <CR> character.

Reference V25ter.

3.5.3.3.5. Disconnect - H

H - Disconnect

ATH Execution command is used to close the current conversation (voice, data or

fax).

Note: this command can be issued only in command mode; when a data

conversation is active the device is in on-line mode (commands are not

sensed and characters are sent to the other party), hence escape sequence

(see register S2) is required before issuing this command, otherwise if &D1

option is active, DTR pin has to be tied Low to return in command mode.

Reference V25ter.

3.5.3.3.6. Return To On Line Mode - O

O - Return To On Line Mode

ATO Execution command is used to return to on-line mode from command

mode. If there's no active connection it returns NO CARRIER.

Note: After issuing this command, if the device is in conversation, to send

other commands to the device you must return to command mode by

issuing the escape sequence (see register S2) or tying low DTR pin if &D1

option is active.

Reference V25ter.