What type of system would usually be implemented in a small office with fewer than 10 telephones?

In a small office with fewer than 10 telephones, a key system is often the most practical choice due to its simplicity and cost-effectiveness. Key systems are designed for smaller work environments where users need a straightforward way to manage incoming calls and lines. Each phone can typically handle multiple lines, and users can easily see which lines are in use and who they can call.

This type of system allows for efficient call management without the complexity that often comes with larger systems, making it particularly suitable for small offices. In addition to the cost benefits and user-friendly interface, key systems can also be less expensive to install and maintain compared to other options.

While private branch exchanges (PBXs) and hybrid systems are generally more versatile and suitable for organizations with higher call volumes or advanced needs, they may introduce complexities and costs that are unnecessary for smaller offices. Voice over Internet Protocol (VoIP) can also be suitable but may require a more extensive infrastructure and network considerations, which smaller offices might want to avoid.