Description
The Yeastar P520 PBX Phone System, part of the P-Series PBX lineup, is a compact yet powerful 20-user / 10 concurrent call SIP/PBX platform designed for small and medium-sized enterprises. It offers modular analog, BRI, and GSM/4G connectivity alongside integrated messaging, mobility, and CRM automation — all through an intuitive web interface.
Key Features
Supports up to 20 users and 10 simultaneous calls, perfect for small teams.
Modular telephony interface with 2 onboard module slots for FXS, FXO, BRI, or a GSM/3G/4G module.
Built-in Unified Communications: Linkus mobile/web/desktop clients, team chat, presence control, and voice/video conferencing.
Advanced PBX features: IVR, queue management, voicemail-to-email, call recording, auto CLIP, call center tools, and operator panel.
Seamless CRM integrations: Salesforce, HubSpot, Zoho, Microsoft Teams, WhatsApp, live chat, and help desk support.
Strong security: firewall, TLS/SRTP encryption, IP blocklist, role-based access, and optional 2FA.
Auto provisioning of over 400 phone models with plug-and-play deployment in minutes.
Yeastar P520 PBX Specifications at a Glance
| Feature | Detail |
|---|---|
| User Capacity | Up to 20 users / 10 simultaneous calls |
| Module Slots | 2× slots for analog or cellular ports |
| Ethernet | 2× 10/100 Mbps ports |
| Supported Codecs | G.711, G.722, G.729A, GSM, ADPCM, Speex, iLBC |
| Transport & Security Protocols | UDP, TCP, TLS, SRTP |
| Expansion Options | Up to 4 FXS/FXO/BRI ports, or 1 GSM port |
| Form Factor | Compact desktop or wall-mounted chassis |
| Power Supply | 12 V DC, 1 A |
| Physical Dimensions | ≈16 × 16 × 3 cm |
| Compliance | CE, RoHS compliant |
Ideal Use Cases
The system is perfect for small offices and startups. It provides strong voice, SMS, and collaboration features at low cost.
It also works well for teams working remotely or across branches. They can use Linkus UC apps on any device.
Customer service operations benefit too. Features like call queueing, real-time wallboards, and SLA routing improve response times.
Finally, it suits businesses upgrading telephony. The system supports both VoIP and legacy PSTN/analog lines.
Yeastar P520 PBX Benefits & Advantages
Scalable design lets your business grow—the modular interface supports future upgrades.
All-in-one solution combining telephony, mobile interoperability, messaging, and CRM integration.
User-friendly interface with fast provisioning and blazing onboarding for new users.
Enterprise-level security and encryption at no extra cost.
Affordable and future-proof, with no required licensing fees and upgradable platform architecture.

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