Hi I'm currently trying to find a way to get my desk phone to ring when I dial from 3CX Assistant. I have the "Call via PBX - Have 3CX call desk phone in MakeCall mode." selected and I've tried with and without the use intercom when calling check box. I'm using a Polycom SoundPoint 331 with the latest BootROM and Firmware. If any additional information is needed, just ask and I'll response ASAP. Thanks.