3cx | Phone System Management Console

The console is designed with a vertical navigation menu on the left side. This layout is consistent across the Windows, Linux, and Cloud (PBX Express) hosted versions.

The console manages how users interact with the system. 3cx phone system management console

| Symptom | Likely Cause | Fix in Console | |---------|--------------|----------------| | Extension can’t register | Wrong provisioning template | Re-provision phone via | | No inbound calls | Trunk registration down | Go to SIP Trunks → check status → click Register | | One-way audio | Firewall/NAT issue | Run Settings > Network > Firewall Check → open required ports | | Voicemail not working | Email settings missing | Settings > Email → test SMTP → set voicemail as email attachment | | High CPU usage | Too many recordings/backups | Increase retention cleanup in Settings > Recording/Logging | The console is designed with a vertical navigation

Access to the console is typically managed via a unique assigned during installation (e.g., https://3cx.us ). | Symptom | Likely Cause | Fix in