What is the purpose of a VPN in relation to 3CX?

The purpose of a VPN (Virtual Private Network) in relation to 3CX is to securely connect remote offices or users to the system. When utilizing 3CX, organizations often have employees working from various locations or need to connect multiple offices. A VPN creates a secure tunnel over the internet, allowing these remote users or offices to access the 3CX server as if they were on the same local network. This ensures that communications remain private and protected from potential eavesdropping or interference.

By establishing a secure connection, the VPN allows users to make VoIP calls, access features, and interact with the system as if they were physically on-site. This functionality is essential for maintaining security and compliance, especially given the sensitive nature of voice communications. Other options, such as enhancing sound quality or providing faster internet access, do not accurately reflect the primary role of a VPN, while allowing customers to make free calls is unrelated to the functions of a VPN and instead pertains to the service aspect of the telephony system.