I am wondering if the gateway could be the problem. I am using AS5300 as the gateway

I now realise that the problem is intermittent you will be sucessful sometimes but not others. I opened port staus monitor but did not know how to open all ports for inbound . I pressed a button called start all monitors but did not see anything in t...

I checked and caller input is enabled in unityCan you tell be how to check if DTMF tones are reaching the Unity. Thanks