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V.25ter at commands – Lucent Technologies Host-Based Controller Modem AT User Manual

Page 57

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Host-Based Controller Modem

Data Addendum

AT Command Set

June 15,

1998

57

Version 1.0

Lucent Technologies Inc.

V.25ter AT Commands

The +GMx commands are required by the Microsoft PC98 specifications.

Manufacturer Identification (+GMI?)

Read Syntax:

AT+GMI?

Result:

Lucent Data/Fax
Lucent Data/Fax/Voice/VoiceView (depending on product)

Version / Revision Information (+GMR?)

Read Syntax: AT+GMR?

Result:

Lucent driver version number (e.g. 1.5.05)

Modem Identification (+GMM?)

Read Syntax:

AT+GMM?

Result:

H.324 video-ready rev. 1.0


The chip set supports the following functionalities of the V.25ter for a H.324 call.

The modified function of the ATD command when issued while the analog voice connection is established. This
command will not cause the DTMF dialing and tone detection associated with the usual ATD # command.

The following AT commands, sub-parameters and values are supported

Table 8. V.25ter AT Commands

Command

Sub-

parameter

Values

Description

AT+A8E=,
,

v8o

1 The default value disables the CI option
while in V.8 origination negotiation.
However, the modem, when initiating the
call as a data call, detects ANSam and is
capable of starting in V.34 mode).

6 Enables DCE control of V.8 and CI
option.

Defined for two conditions: as a
parameter to configure
V.8originating and answering
operation while the DCE is on-
hook. It initiates an action if the
DCE is off-hook. If enabled, V.8
negotiation does not preclude
simultaneous implementation of
other negotiation means like
V.8bis, V.18, V.32bis.

v8a

1 The default value disables the CI option
while in V.8 negotiation. However, the
modem, when answering a call, sends the
ANSam and is capable of starting in V.34
mode)

5 Enables DCE control of V.8 and CI
option.

v8cf

21h Call function for H.324 calls

c1h Call function for DSVD calls

AT+A8E?

Report current values of sub-
parameters

AT+A8E=?

Report supported ranges of values