Specifications

V.3229 / V.3229L <C#>-7

Asynchronous Operating Commands

Example: The ATD5551212 command has been

executed, and the phone is busy. To repeat the

instruction type A/ , but do not use AT before this

command as AT would empty the buffer and there

would be no command to repeat.

Numbered

Commands

Series of commands that start with the same letter are

distinguished by a number following the letter.

For example, the M0 command selects speaker

always off, M1 speaker on until carrier detected, and

M2 selects speaker always on.

In all cases, the zero (0) may be omitted so the

commands M and M0 are identical.

For clarity, this manual uses the nonzero form of

commands. The modem treats both the same but

zeros count against the buffer total.

Group

Commands

A group of commands can be typed in a single

command statement. Pressing the return key sends

the entire command string to the modem, which

executes each command individually in the order it

appears in the command statement reading from left

to right.

For example, the command statement

ATQ0V0L3DT5551212 means

¥AT Attention.

¥Q Allow response messages to be sent.

¥V Select digit code responses.

¥L3 Select high volume.

¥DT Tone dial 555-1212.

Response

omman

ont.