Comtrol AT Commands for SmartACFL - Manual (Page 148)

Command Reference Manual
6-4 Conexant 100722A
6.2 Voice Commands
6.2.1 Configuration Commands
6.2.1.1 +FCLASS=8 - Select Voice Mode
+FCLASS=8 selects the Voice Mode. The Voice Mode commands and responses described in this section are applicable
when command +FCLASS=8. (See Section 3.2.1.2 for the definition of the FCLASS command.)
6.2.1.2 +VNH - Automatic Hang-up Control
This command enables or disables automatic hangups.
Syntax
+VNH=<hook>
Defined Values
<hook> Decimal number corresponding to the selected option (see Table 6-4).
0 The modem enables automatic hangups as is normal in other modes.
1 The modem disables automatic hangups usually found in the other non-Voice
Modes.
2 The modem disables automatic hangups in the other non-Voice Modes. The
modem performs only a “logical” hangup (returns to OK result code).
Table 6-4. +VNH Command Behavior
Command Response
Command No Carrier Present ATH ATZ DTR & D2
+VNH=0 Y Y Y Y
+VNH=1 N Y Y Y
+VNH=2 N N N Y
Notes:
Y= will hang-up; N= will not hang-up.
How +VNH is reset:
DTE uses +VNH command to change setting.
DTE issues another +FCLASS mode change without issuing another +VNH.
A hang-up event occurs (see this table).
DTE issues +VIP command.
Reporting Current or Selected Values
Command: +VNH?
Response:
<hook>
Example: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VNH=?
Response:
(<hook> range)
Example: (0-2)
Result Codes
OK <hook> = 0-2.
ERROR Otherwise.