fqdn binding key trial

  1. SIP Trunk DNS names not resolving

    Hi, I'm fairly new to 3cx as a sys admin and I worked to upgrade the system from version 11 to 15 back in February, following the recommended upgrade path and not going from 11 to 15 directly. All of the trunks worked perfectly well up until 3 weeks ago. I was forced to change the trunks from...