Yeastar S412 8 Users 8 Concurrent Calls Modular IP-PBX

The Yeastar S412 modular IP-PBX is an all-in-one telephony solution designed for small businesses requiring up to 8 users and 8 concurrent calls. Pre-configured with 8 FXS ports, the S412 delivers a reliable and cost-effective platform that blends analog and IP telephony with unmatched modular flexibility. Ideal for companies looking to integrate VoIP with existing analog infrastructure, the S412 supports SIP trunking, mobile connectivity, and digital lines. With support for popular IP phone brands and auto-provisioning, it simplifies deployment and daily communications.

Product Features

Compact PBX with modular flexibility
The S412 includes 8 fixed FXS ports and 4 module slots for customized expansion. Two slots handle internal extensions, and two support external lines, offering maximum deployment flexibility.

Supports analog, digital, and cellular lines
Add modules to integrate:

• Analog FXO (O2), FXS (S2), or combo (SO)
• Digital ISDN BRI (B2)
• Cellular GSM/3G/4G (GSM, 3G, 4G LTE)

Feature-rich telephony system
Access over 50 built-in phone features including:

• Call routing and forwarding
• Call monitoring and recording
• IVR (automated attendant)
• Fax to email
• Speed dial, ring groups, and blacklists

Auto-provisioning for major VoIP brands
Compatible with IP phones from Yealink, Cisco, Grandstream, Polycom, and Snom. Setup is fast and hassle-free via auto-detection and graphical UI.

Unified communications with Linkus UC client
Turn smartphones and desktops into business softphones using Linkus apps for Android, iOS, Windows, and macOS. Stay connected on the go with full PBX features.

Built-in App Center for extended capabilities
Includes Yeastar App Center for installing system apps such as LDAP, billing, hotel PMS, and more without external servers.

Web-based configuration and maintenance
Configure, manage, and update the system from any browser. Point-and-click UI allows easy admin without advanced IT knowledge.

Product Specifications

• Users supported: 8
• Concurrent calls: 8
• Fixed ports: 8 FXS
• SIP trunks: Up to 4
• Customizable modules (choose as needed):
  • S2 module: 2 × FXS
  • O2 module: 2 × FXO
  • SO module: 1 × FXS + 1 × FXO
  • B2 module: 2 × BRI
  • GSM module: 1 × GSM
  • 3G module: 1 × WCDMA
  • 4G LTE module: 1 × LTE voice/data
• Voice codecs: G.711µ/a-law, G.722, G.726, G.729A, GSM, Speex, ADPCM, iLBC
• Video codecs: H.263, H.263P, H.264, MPEG4
• Fax support: T.38 Fax-over-IP
• Protocols supported: SIP, IAX2
• Ethernet ports: 2 × 10/100 Mbps
• Additional interfaces: 1 × TF card slot
• Management interface: Web-based GUI
• Dimensions: 11.42″ × 7.09″ × 1.30″
• Mounting: Rack or desktop

Package contents

• Yeastar S412 IP-PBX
• Power adapter
• Ethernet cable
• 4 × rubber feet
• Quick installation guide