Description
The Yeastar P520 IP PBX Appliance is the perfect on-premise phone system for small businesses that need professional unified communications without monthly cloud fees. It supports up to 20 users and 10 concurrent calls right out of the box, with modular ports so you can connect analog phones, fax machines, traditional phone lines, or add cellular backup. Linkus UC Clients turn every smartphone, laptop, and desktop into a full business extension, so your team stays connected whether they’re in the office or working remotely. Compact, secure, and incredibly easy to manage – it’s the reliable PBX upgrade SMBs have been waiting for.
The Telecom Spot Expert Take
For small businesses and growing teams, the Yeastar P520 hits the sweet spot between powerful features and simple deployment. Its modular design lets you start small and add exactly the analog or cellular connectivity you need without overpaying for ports you’ll never use. Linkus clients and the operator panel deliver the modern collaboration tools your staff actually want to use, while the on-premise appliance keeps full control and data security in-house. If you’re tired of unpredictable cloud pricing or limited features on basic VoIP services, this P520 gives you enterprise-grade reliability at a small-business price. Ideal for offices, retail locations, or professional services firms that value uptime, flexibility, and straightforward management.
Key Features
- 20 users & 10 concurrent calls – Perfect capacity for most small offices.
- Linkus UC Clients – Voice, video, chat, presence, and mobile extensions on every device.
- Modular telephony – Up to 4 FXS + 4 FXO/BRI ports plus 1 cellular module.
- Operator Panel & Call Flow Designer – Real-time control and drag-and-drop routing.
- Free call recording & voicemail-to-email – Built-in and ready to use.
- Enterprise-grade security – TLS/SRTP, 2FA, anti-hacking blocklist.
- Easy web management – Graphical dashboard and auto-provisioning.
Technical Specifications
| Category | Specification |
|---|---|
| Users | 20 |
| Concurrent Calls | 10 |
| Max FXS Ports | 4 (optional card) |
| Max FXO/BRI Ports | 4 (optional card) |
| Max 3G/4G Ports | 1 (optional card) |
| Ethernet | 2 × 10/100 Mbps |
| Power | DC 12V 1A |
| Dimensions | 16 × 16 × 3 cm |
| Weight | 0.3 kg |
| Form Factor | Desktop & Wall-mount |
See Yeastar P520 Datasheet for full spec




