Configure Call Progress Tone - Yeastar Technology TG100 User Manual

Procedure
Navigate to Gateway > Mobile List > Mobile List,
1.
On the General section, change the RxGain and TxGain.
2.
 RxGain: The received volume of the module.
 TxGain: The transmitting volume of the module.
Click Save and Apply Changes.
3.

Configure Call Progress Tone

When dialing from SIP to GSM/3G, during the trying period at SIM carrier side, it's
completely silent in SIP side. You can enable Call Progress Tone to get a virtual ring
back tone.
TG100 User Guide
click .
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