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Yeastar S412 8 Concurrent Calls Modular IP-PBX

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Yeastar S412 Modular IP-PBX

Yeastar S412 Modular IP-PBX is a modular IP-PBX for small businesses with auto-provisioning capabilities for major VoIP brands, including Polycom, Cisco, Grandstream, Snom, and Yealink. S412 supports up to 8 SIP accounts, 4 SIP trunks, 12 analog lines, 4 digital lines, or 2 cellular lines. It comes pre-configured with 8 fixed FXS ports. It offers 4 on-board module slots for customization: 2 for internal extensions and 2 for external lines. Customize your Yealink IP-PBX with the following modules:

  • S2 Module: 2 FXS (analog)
  • O2 Module: 2 FXO (analog)
  • SO Module: 1 FXS / 1FXO (analog)
  • B2 Module: 2 BRI (digital)
  • GSM Module: 1 GSM (cellular)
  • 3G Module: 1 WCDMA (cellular)
  • 4G LTE Module: 1 3G/4G voice/data (cellular)


Yeastar S412 thus provides a flexible, cost-effective VoIP telephony control center. It gives you an incredible array of over 50 telephony features, including fax-to-email, call monitoring, automated attendant, and one-touch recording.

Yeastar S412 VoIP PBX Quick Features:

  • Communications Protocols: SIP, IAX2
  • Ethernet Ports: 2x 10/100
  • Additional Interfaces: 1x TF card slot
  • Users: 8
  • Concurrent Calls: 8
  • SIP Trunks: 4
  • Fixed Ports: 8 FXS
  • Customizable Ports:
    • FXS/FXO Ports: up to 4 (with O2, S2 or SO module/s)
    • E1/T1/PRI Ports: 0
    • BRI Ports: up to 4 (with B2 module/s)
    • GSM Channels: up to 2 (with GSM module/s)
    • 3G Channels: up to 2 (with 3G module/s)
    • 4G LTE Channels: up to 2 (with 4G LTE module/s)
  • Audio Codecs: G.711µ/a, G.722, G.726, G.729A, GSM, Speex, ADPCM, iLBC
  • Video Codecs: H.263, H.263P, H.264, MPEG4
  • Fax-over-IP: T.38
  • Dimensions: 11.42″ x 7.09″ x 1.30″
  • Mounting: rack

Yeastar S300 300-User Expandable VoIP Phone System Package Contents:

  • S412 IP-PBX
  • Power adapter
  • Ethernet cable
  • 4x rubber feet

Check out the list of Yeastar PBX


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