We have testing 3cx v15 Linux on ESXi 6.0 using local RAID1 SATA drives, 2 GB RAM and 4 vCPU (2 socket) for 12 extension with 8SC.
One the issue is intermittent drop connection from remote phone via VPN. VPN is working when we noticed "no service" on the Yealink phone and after 1 minutes, the Yealink is connected again and runs normal.
We other another VM on the same VMware ESXi running Windows 2012 r2 without any issue or does not have drop connection. The ESXi server has 32 GB RAM and are not all allotted.
We are still trying to figure it is 3cx Linux or NIC driver or something else causing the issue.
Anyone running 3cx on VMware ESXi and want to share their configuration?
Thanks in advance for your feedback,
Bora