Reference Information

Modem Reference Information

Modem Reference Information

Note

If your computer has a modem port, you can customize the operation of the modem using AT commands and S-registers. You can do this from Phone and Modem Options in Control Panel, from most communications software, or by using terminal mode in your software. See “To change your modem settings” on page 61.

You should have a good understanding of modems and how they operate before you change default settings.

This section contains summary information about AT commands, S-registers, and selected result codes for the built-in modem. Your computer has an Ambit (Ambit/ESS or Ambit/Lucent) modem.

Modem Reference (Ambit)

In the following AT command table, default settings are shown in bold. All listed AT commands except A/ must be preceded by “AT.”

AT Commands (Ambit)

Command

Function (Ambit)

Basic and Extended AT Commands

A/

A

B0

C1

Dn

E0

E1

H0

H1

I0

I1

I2

I3

I4

I5

I6

I7

I9

I10

I11

Re-execute command (not preceded by AT)

Go off-hook and attempt to answer a call

Select V.22 connect @1200 bps

Return OK message

Dial modifier

Turn off command echo

Turn on command echo

Initiate a hang-up sequence

If on-hook, go off-hook and enter command mode

Report modem speed

Report chip set

Report DSP code revision

Report controller code revision

Report manufacturer name

Report board name

Report OK

Report OK

Report data/TAM/handset/speakerphone

Report DSP code details

Report controller code details

Corporate Evaluator’s Guide 169

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HP Book vt6200 manual Modem Reference Information, Modem Reference Ambit, AT Commands Ambit

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