Yeastar S20 S-Series VoIP PBX 20 Users 10 Concurrent Calls

Yeastar S20 Communication System

The Yeastar S20 VoIP PBX is a standalone telephony system designed to manage up to 20 users and 10 concurrent calls within small business infrastructures. This hardware utilizes a modular architecture to provide flexible connectivity options for various trunking requirements. Consequently, network administrators can customize the interface types based on specific organizational needs. The system operates on the S-Series firmware, ensuring stable performance for mission-critical voice communications.

Key Features

• Modular Hardware Design
  The chassis contains two internal module slots that support FXS, FXO, BRI, and GSM or 3G/4G cellular expansion.

• Integrated Security Protocols

  • Built-in firewall functionality to prevent unauthorized SIP registration.
  • Support for TLS and SRTP encryption to secure voice data packets.
  • IP blocking and auto-defense mechanisms against brute force attacks.

• Advanced Call Management
  This unit includes automated attendant, call recording, and voicemail-to-email capabilities without additional licensing fees.

• Remote Connectivity
  The system supports the Linkus Mobile Client, allowing users to register extensions via smartphones or desktop computers.

Specifications

What’s in the Box

• Yeastar S20 Main Unit
• Power Adapter
• Ethernet Cable
• Warranty Card and Quick Start Guide

Why Choose This IP PBX

• The system utilizes an energy-efficient design that consumes less than 10.6 Watts during peak operation.
• Administrators can configure the system through a web-based GUI, simplifying the deployment of complex dial plans.
• Therefore, organizations can integrate legacy analog equipment with modern SIP trunks using a single hardware platform.
• Additionally, the lack of per-user licensing reduces the total cost of ownership for growing enterprises.