Yeastar S50 IP PBX VoIP Phone System



  • Yeastar S50 VoIP phone system is a compact and full-featured IP-PBX for up to 50 users and 25 concurrent calls. Yeastar S50 IP PBX comes in a 19" 1U rack-mountable chassis and is capable of supporting ISDN BRI, PSTN, and GSM connectivity. Powered by the latest processor technology, Yeastar's S-Series PBX is a trust worthy telephone system with one of the highest MTBF (Mean Time Between Failures) in the industry. Based on Asterisk 13, S-Series is born to be powerful and constantly meeting your needs.
  • Part of Yeastar's latest S-Series VoIP PBX line, it is easy to install, simple to manage and built to perform. You can save time with fast installation and maintenance because Yeastar's S-series PBX can be streamlined using their advanced auto-configuration, auto-detect and plug-and-play capabilities. They are also easily controlled and configured via intuitive and graphical UI and point-and-click online configuration panel. Everything can be managed via any internet enabled device.
  • Yeastar S-Series VoIP PBX provides flexible telephony interfaces combination while allowing for future scalability with unique modular design. Besides the built-in rich SIP capabilities, S-Series lets you decide what types of extensions and physical trunks you need in your telephone system. When your business grows, adding more users and concurrent calls is also possible with S-Series. With Yeastar S-Series, all the telephony interfaces are modular and customizable, whether it’s FXS, FXO, ISDN BRI, GSM/3G, or E1/T1/PRI. S20 has 2 onboard module slots.

*Expansion ports and modules not included*

Technical Description

  • Users - 50
  • Max Concurrent Calls - 25
  • Max Analog Ports - 8
  • Max BRI Ports - 8
  • Max GSM/3G Ports - 4
  • VoIP Trunks - 50
  • Protocol - SIP (RFC3261), IAX2
  • Transport Protocol - UDP, TCP, TLS, SRTP
  • Codec - G711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC, H263, H263P, H264, MPEG4
  • DTMF - In-band, RFC4733, RFC2833, SIP INFO
  • LAN - 1 × 1 × 10/100/1000 Mbps
  • WAN - 1 × 10/100/1000 Mbps
  • IP Services - Static IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT, STUN
  • Voicemail - 5000 min (expandable)
  • External Storage - SD Card
  • Size (L x W x H) (cm) - 34 x 21 x 4.4
  • Mounting - 1U Rack-mount

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