Scalability: The S412 may support a certain number of users/extensions and can often be expanded as your business grows.

Telephony Features: These systems typically offer standard telephony features such as call waiting, transfer, hold, conferencing, voicemail, and more.

VoIP Support: Yeastar PBX systems usually support Voice over Internet Protocol (VoIP), allowing businesses to make calls over the internet.

Unified Communications: Integration with unified communication features may include instant messaging, video conferencing, and collaboration tools.

Easy Configuration: Yeastar devices are often known for their user-friendly web interfaces, making it easier for administrators to configure and manage the system.

Connectivity Options: The S412 may offer a variety of connectivity options, including support for analog lines, digital lines, and SIP trunks.

Security Features: Security is a crucial aspect, and Yeastar PBX systems typically provide features to secure communications and prevent unauthorized access.

Third-Party Integration: These systems may support integration with various third-party applications and services to enhance functionality.