ComStar SVD Owner’s Manual
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To end the speakerphone connection once you are
finished with the call:
Q
In terminal mode, type ATHZ and press Enter.
Changing The ComStar SVD’s Settings
You can control the speakerphone parameter settings by
changing them with the following AT command string (only valid if
the modem already is in voice mode):
AT#SPK=<mode>,<speaker atten.>,<mic. gain>
Q
For the <mode> setting, use the following values:
0
Mutes microphone
1
Normal talk/listen (default)
2
Microphone on maximum, speaker off
Q
For the <speaker atten.> setting, assign a value between 0
and 16. The higher the number, the quieter the speaker’s
volume will be. For example, assigning the value 16 will turn
the speaker off. 5 is the default value for this setting.
Q
For the <mic. gain> setting, assign a value between 0 and 3.
The higher the value, the more sensitive the microphone. 1 is
the default value for this setting.
An Example of changing the ComStar SVD’s Settings
Here is an example of using the AT commands to change the
ComStar SVD’s settings:
AT#SPK=1,0,2
Q
This keeps the speakerphone’s mode at it’s default setting of
normal talk and listen,
Q
Sets the volume of the speakerphone to its highest setting,
and
Q
Sets the sensitivity of the microphone to its second most
sensitive setting.