Siemens M20 Terminal User Manual

AT command interface
Version 8 dated 15.03.00 91
Siemens Information and Communication Products
A
AT+VGT Transmit gain selection of microphone
Test command
AT+VGT=?
Response
+VGT: (list of supported <n>) OK
Parameter
see set command
Read command
AT+VGT?
Response
+VGT: <n> OK
Note
: this command may only be used with (AT^SNFS=3) audio mode 3.
Parameter
see set command
Set command
AT+VGT=[<n>]
Response
TA sets amplification of audio samples sent from the TA to the computer.
OK
Parameter:
<n> 0 – Automatic gain control
1(0x1)-128(0x80)
-255(0xFF)
gain=20*log(n/128)
Note
: default value is 128.
Hex input not accepted
Reference
GSM 07.07
Note
Set command works only in audio mode 3.
AT+VIP Initialize voice parameters
Test command
AT+VIP=?
Response
+VIP: list of supported <n>s OK
Parameter
see set command
Test command
AT+VIP?
Response
+VIP: <n> OK
Parameter
see set command
Set command
AT+VIP=<n>
Response
TA activates the selected audio set.
OK
Parameter
<n> 1(0x1)
Audio mode 1: standard mode approved for handset V38140-H-X33
3(0x3)
Audio mode 3: customer-specific mode; all audio parameters can be
adjusted by AT commands
Reference
GSM 07.07
Note
In mode 1, no audio parameters can be set. The following set commands can be used in mode 3:
+VGR
+VGT
^SNFA
^SNFI
^SNFO
^SNFE

Siemens M20 Terminal Specifications

General

Brand	Siemens
Model	M20 Terminal
Category	Engine
Language	English