Flexible and modular VoIP PBX with up to 12 FXS Extensions and up to 4 CO/BRI lines.


S412 is a flexible and modular VoIP PBX that provides productivity-enhancing communication platform with a compact and powerful analog and VoIP capable system for small business.

S412 270x270

Product Details

Physical Features

  • 20 Users
  • 8 Concurrent Calls
  • 12 FXS Ports
  • 4 FXO/BRI Ports
  • 2 GSM/3G/4G Port
  • DC 12V 3.33A
  • 29cm x 18cm x 3.3cm
  • 0.68 kg

Call Features

  • Attended Transfer
  • Call Back
  • Call Detail Records (CDR)
  • Call Forwarding
  • Call Pickup
  • Call Recording
  • Caller ID

Business Features

  • Automated Attendant (IVR)
  • Conference
  • Email to SMS/SMS to Email
  • Fax to Email
  • Music on Hold
  • Ring Group
  • Video Calls

Telephony Support

  • SIP (RFC3261), IAX2
  • G711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC, H263, H263P, H264, MPEG4
  • In-band, RFC4733, RFC2833, SIP INFO
  • Ethernet: 2 × 10/100 Mbps
  • Static IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT, STUN


  • Real-time Status Monitor
  • Remote Management
  • Event Center
  • Do Not Disturb (DND)
  • User Portal
  • User Permission

Yealink Works With

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