General Features

• Model: Yeastar S20 S-Series IP PBX
• Type: Compact, entry-level IP PBX system for small businesses
• User Capacity:
  • 20 Users (Maximum supported)
• Extension Capacity: Up to 20 Extensions
• Port Capacity:
  • 1x FXS (Foreign Exchange Station) port for analog devices (phone, fax)
  • 1x FXO (Foreign Exchange Office) port for PSTN/analog line
  • 2x Gigabit Ethernet Ports for network connectivity
• Expansion Options:
  • Can be expanded with up to 2 extension cards (FXS/FXO/VoIP trunks)
  • Supports additional S-Series cards for scalability

VoIP Features

• VoIP Protocols Supported:
  • SIP v2 (Session Initiation Protocol)
  • IAX2 (Inter-Asterisk Exchange)
  • SIP Trunking support for direct VoIP service provider integration
• Codec Support:
  • G.711 (A-law, µ-law)
  • G.729, G.722, G.726, iLBC
• Advanced Call Features:
  • Call Forwarding, Call Transfer (Blind & Attended), Call Hold
  • Call Conferencing (up to 30 participants)
  • Voicemail to Email with 500 voicemail boxes
  • Interactive Voice Response (IVR) for automated call handling
  • Call Recording, Call Queuing, Automatic Call Distribution (ACD)
  • Call Blocking, Call Park, Call Monitoring
  • Call Routing based on time, DID, or other criteria

System Features

• Web-Based Management:
  • Intuitive web interface for easy setup and management
• Security Features:
  • SIP TLS and SRTP encryption for secure communications
  • Firewall settings and role-based access control for secure system access
• Languages Supported: Multi-language support for international use
• Cloud Management (Optional):
  • Supports Yeastar Cloud for remote monitoring and management

Hardware Specifications

• CPU: ARM Cortex-A9 Processor
• RAM: 1 GB DDR3
• Storage: 8 GB SSD (expandable)
• Power Supply: 12V DC, 1A
• Power over Ethernet (PoE): Supported for simplifying installations

Network & Connectivity

• Network Interface:
  • 2x Gigabit Ethernet (10/100/1000) ports for LAN/WAN connection
  • VLAN (Virtual LAN) support for network segmentation
  • Static IP/DHCP configuration support
• Quality of Service (QoS): Ensures prioritized VoIP traffic for quality calls
• Network Redundancy Support: Supports dual WAN for network failover and backup

Mobile & Remote Extension Support

• Yeastar Linkus Mobile App:
  • iOS & Android app for mobile extension
  • Make and receive calls, voicemail management, presence information
• Remote Extensions: Supports SIP accounts for remote access and extensions

Call Center Features

• Automatic Call Distribution (ACD):
  • Advanced call routing and queuing
  • Detailed call reporting
  • Supports call monitoring for supervisors
• Queue Management: For handling high volumes of inbound calls

Physical Dimensions

• Size: 190mm x 190mm x 43mm (L x W x H)
• Weight: Approximately 1.2 kg

Environmental and Power Specifications

• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Storage Temperature: -20°C to 70°C (-4°F to 158°F)
• Humidity: 10% to 90% non-condensing
• Power Consumption: Approx. 12W