3CX Phone System includes a unique VOIP Client for every user that can act as soft phone, allowing you to easily make, receive and transfer calls from your computer using a headset. Use 3CX VOIP Client in combination with a desk phone, or simultaneously, to see status/presence of other users, lines and call queues and configure extension preferences.

| System overview |
| Web-based console | Using VOIP gateways |
| Add a VOIP provider | Manage extensions | Line management |
| User portal | Outlook & CRM integration | Unified communications |
| Integrated fax server | Connect branch offices | Phone provisioning |
| Call conferencing | Enterprise features |