Hello,
I am experiencing an issue with a Yealink T19P E2 phone that is not registering with our 3CX PBX hosted on Google Cloud Platform (GCP).
Here is what I have done so far:
I followed the steps in this guide: 3CX SBC Installation
I installed the 3CX SBC on a local Windows 10 machine with...
When I call the DID number it automatically hung up. The problem appears when I add the Date and Time condition, but if I removed it everything works.
Any idea why?
I edited the date and time and enter a specific DID