grandstream gxw4104 audio problem pstn gateway fxo

  1. Solved Grandstream GXW-4104 Audio issue

    Hi, I have a Grandstream GXW-4104 connected to 4 POTS lines. I created a gateway per the 3CX article "Configuring Grandstream FXO VoIP Gateway" (https://www.3cx.com/voip-gateways/grandstream-fxo/) My firmware is 1.4.1.5. I ran all the AC Impedance Tests in the GXW-4104. The...
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