How does 3CX facilitate remote work for users?

3CX facilitates remote work for users primarily through the provision of the 3CX app and web client. These tools enable users to connect to the 3CX phone system from anywhere with internet access, allowing them to make and receive calls, as well as access other features such as messaging and video conferencing, all without the need to be physically present in the office. This flexibility supports a modern, distributed workforce, enhancing productivity and collaboration among team members regardless of their physical locations.

The other options present alternatives that do not effectively support remote work. A dedicated fax machine is not a relevant tool in the context of facilitating remote communication in today's digital work environment. Restricting communication to in-office users contradicts the very notion of remote work, which aims to empower users to operate effectively outside the traditional office setting. Lastly, requiring a VPN for all remote communications can add unnecessary complexity and potential barriers for users accessing the system remotely, whereas the 3CX app and web client provide a more user-friendly experience without such requirements.