Yeastar S20 VoIP PBX Gateway - 20 Users, 10 Concurrent Calls, 2x 10/100 Mbps Ethernet, SIP/IAX2, TLS/SRTP

The Yeastar S20 is a compact and powerful VoIP PBX gateway designed for small to medium-sized businesses. It supports up to 20 users and 10 concurrent calls, with modular expansion options for FXS/FXO and GSM/3G/4G ports. The device ensures secure communications with TLS and SRTP encryption, and supports both SIP (RFC3261) and IAX2 protocols. With dual 10/100 Mbps Ethernet ports and a robust feature set including IVR, voicemail, and conference, the S20 is an ideal entry-level unified communications solution.

Advantages

Cost-effective and scalable, the Yeastar S20 offers a modular design that allows businesses to add analog or cellular trunks as needed. Its support for multiple audio codecs ensures high-quality voice calls, while built-in VPN and firewall features enhance network security. The device is easy to deploy and manage, making it perfect for organizations looking to migrate to VoIP without complexity.

Suitable for

• Small to medium-sized businesses needing a reliable VoIP PBX
• Offices requiring up to 20 extensions and 10 concurrent calls
• Deployments needing analog or cellular trunk integration
• Organizations prioritizing secure communications with TLS/SRTP

Key specifications

• Max Users: 20
• Max Concurrent Calls: 10
• Max VoIP Trunks: 20
• Max FXS/FXO Ports: 4 (Modular)
• Max GSM/3G/4G Ports: 4 (Modular)
• Ethernet Ports: 2 x 10/100 Mbps
• Protocols: SIP (RFC3261), IAX2, UDP, TCP
• Security: TLS, SRTP
• Audio Codecs: G.711, G.722, G.726, G.729A, GSM, Speex, ADPCM, iLBC, Opus
• Storage: 8GB Flash
• Power Supply: DC 12V, 1A
• Mounting: Desktop, Wall-mount
• Operating Temperature: 0°C to 40°C

Recommendations

The Yeastar S20 is a versatile and secure VoIP gateway that delivers excellent value for small businesses. Its modularity and comprehensive feature set make it a smart choice for future-proofing your communication infrastructure.