Yeastar D30 User and Call Expansion Module

Yeastar D30 — User & Call Expansion DSP Module for P‑Series & S‑Series PBX

The Yeastar D30 User and Call Expansion Module is a high-capacity extension unit designed to expand the user capacity and call handling performance of Yeastar S-Series IP PBX systems. As your business communication needs grow, the D30 enables you to scale telephony resources without requiring additional servers or complex network redesigns — making it ideal for medium to large enterprises, call centers, educational campuses, hotels, and multi-department organizations.

This expansion module integrates seamlessly with the S-Series platform to support significantly more users and concurrent calls, ensuring efficient call distribution and reliable performance even under heavy traffic conditions. With robust build quality and straightforward deployment, the Yeastar D30 enhances your telephony infrastructure and extends the capabilities of your existing IP-PBX system.

Whether you’re onboarding more employees, expanding call center operations, or connecting more extensions across departments, the Yeastar D30 provides a reliable and scalable way to grow your communications.