Specifications

CINTERION
®
BGS12 Hardware Interface Description
Contents
83 of 109
Page
BGS12 HID_V00.915
Confidential / Released
2019
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01
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07
5.6.3 Characteristics of Audio Modes
The electrical characteristics of the voiceband part depend on the current audio mode set with
the AT^SNFS command.
Table 30: Voiceband characteristics (typical)
Audio mode no.
AT^SNFS=
1 2 3
Name
User Handset Basic
Handsfree
Headset
Purpose
DSB with
individual
handset
Car Kit Headset
Gain setting via AT
command.
Defaults:
inBbcGain
outBbcGain
Adjustable
0-24dB
-6-15dB
Adjustable
0-24dB
-6-15dB
Adjustable
0-24dB
-6-15dB
Sidetone Adjustable Adjustable Adjustable
Volume control Adjustable Adjustable Adjustable
Echo control
(send)
Cancellation Cancellation Cancellation
Sidetone gain at
default settings
-128dB
-128dB
-128dB
Note: With regard to acoustic shock, the cellular application must be designed to avoid
sending false AT commands that might increase amplification, e.g. for a high sensitive
earpiece. A protection circuit should be implemented in the cellular application.