Wavecom G900 User Manual download pdf (Page 18)

Wavecom GSM Modem

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3.12. SideTone modification +SIDET

The syntax of the command is :

AT+SIDET=<val1>,<val2>

This command is used to get an echo of the voice in the speaker (to

hear what is said in the speaker).

<val2> level <val1> presence

0 0 db 0 SideTone is disabled

1 - 6 db 1 SideTone is enabled

2 -12 db

3 -18 db

Application to GSM AT+SIDET=1,0

GSM to application OK command valid

Application to GSM AT+SIDET? current value

GSM to application +SIDET: 1,0

command valid

3.13. Echo canceler +ECHO

The syntax of the command is :

AT+ECHO=<val1>,<val2>

This command is used for car kit applications to reduce the echo effects

than can occur in a car.

<val2> attenation <val1> presence

0 - 18 db 0 Echo is disabled

1 - 24 db 1 Echo is enabled

2 -30 db

3 - 36 db

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Wavecom G900 User Manual Page 18