Compaq 1592DMT Compaq Armada 1500 Family of Personal Computers Maintenance and - Page 211

The DTE only, Automatic Hang-up Control.

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Addendum to Compaq Armada 1500 Maintenance and Service Guide Table C-2, AT Commands, Continued Command +VNH +VLS Description Automatic Hang-up Control. This command causes the DCE to enable or disable automatic hangups in the data and facsimile modes. See the ISO-101 specification for the detailed description of this command and its interaction with the +FCLASS and ATH commands. +VNH=0 The DCE retains automatic hangups (which is the way in the other non-voice modes). +VNH=2 The DCE disables automatic hangups in the other non-voice modes. The DTE only performs a logical hangup (returns the "OK" result code). Analog Source/Destination Selection. This is a general purpose analog source/destination command that attaches various analog devices to the system in voice mode. +

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Addendum to Compaq Armada 1500
Maintenance and Service Guide
28
Addendum 255318-001 to Guide 284820-001
Table C-2, AT Commands,
Continued
Command
Description
+VNH
Automatic Hang-up Control.
This command causes the DCE to enable or disable automatic
hangups in the data and facsimile modes.
See the ISO-101 specification for the detailed
description of this command and its interaction with the +FCLASS and ATH commands.
+VNH=0
The DCE retains automatic hangups (which is the way in the other non-voice
modes).
+VNH=2
The DCE disables automatic hangups in the other non-voice modes.
The DTE only
performs a logical hangup (returns the
“OK” result code).
+VLS
Analog Source/Destination Selection.
This is a general purpose analog source/destination
command that attaches various analog devices to the system in voice mode.
+<VLS=<label>
0:
Speakerphone off, detach analog devices, DCE on-hook.
1:
Speakerphone in hold, detach analog devices, DCE off-hook.
2:
DCE off-hook.
3:
DCE off-hook.
5:
Disables/detaches microphone analog source (leaving speaker only) when
speakerphone is in operation (phone mute feature).
7:
Speakerphone on, attach internal speaker and internal microphone, DCE off-hook.
AT+VLS?
Reports the current analog source/destination configuration, along with a listing of all
event codes reported from the modem to the DTE under that configuration.
AT+VLS=?
Queries the DCE for the range of supported configurations and the list of unsolicited
event codes that the modem will report to the DTE under each configuration.
For
speakerphone, the configurations supported are 0, 5, and 7—as explained above.