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Type of used networks – select the network types for the module to log in.
Automatic band selection – enable the automatic mobile frequency band
selection.
GSM-band selection – select the GSM frequencies for the mobile network.
UMTS-band selection – select the GUMTS frequencies for the mobile network.
Enable HR codec – enable the Half Rate codec for the GSM network.
Enable AMR codec – enable the Adaptive Multi-Rate codec for the GSM network.
Enable FR AMR Wideband codec – enable the Full Rate Adaptive Multi-Rate
codec for UMTS.
Enable UMTS AMR Version 2 codec – enable the Full Rate Adaptive Multi-Rate
version 2 codec for UMTS.
Enable UMTS AMR Wideband codec – enable the Adaptive Multi-Rate WideBand
for UMTS.
Enable echo canceller – enable/disable echo cancelling for the module.
Enable noise reduction – enable/disable noise reduction for the module.
Warning
The GSM/UMTS codec and noise reduction settings of the above listed
module types may affect the DTMF detection quality. Make sure that the
settings comply with the mobile network used.
Audio level DSP
Set the voice level for calls in the gateway signal processor.
Output audio level DSP [dB] – audio volume gain/loss to VoIP
Input audio level DSP [dB] – audio volume gain/loss to GSM
Caution
An extremely high voice level may lead to poor voice quality (distortion,
echo, etc.) and wrong DTMF detection!
Tone generated for incoming calls from GSM/UMTS
Dial tone – set the dial tone for incoming calls from GSM/UMTS.
Ring tone – set the ring tone for incoming calls from GSM/UMTS.
Generate busy tone to GSM/UMTS – enable busy tone generation for call
termination.
