Snom SIP audio conference phones are designed for huddle spaces, conference rooms and training rooms that need clear, business-grade HD audio over your VoIP or IP-PBX platform.
Use the scalability guide below to match the right Snom conference phone and expansion units to your room size, then browse models further down the page.
Conference Phone Scalability by Room Size

- Huddle rooms (2–8 people): a single Snom C620 conference phone.
- Conference rooms (10–16 people): C620 with one Snom C52 expansion unit.
- Large conference rooms (18+ people): C620 with two Snom C52 expansion units.
- Training rooms / multi-table layouts: C620 with two Snom C52 units for wider coverage.
Exact coverage varies with room acoustics and table layout, but this guide gives a practical starting point for most deployments.







