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The Yeastar D30 DSP (digital signal processor) module can be inserted into a Yeastar S100 or S300 IP-PBX, letting the VoIP PBX support an additional 100 users and 30 concurrent calls. Expand the power of your VoIP phone system without needing expensive hardware with this module.

Yeastar YST-D30 Compatibility:

  • Yeastar S100
  • Yeastar S300

Yeastar EX08 is specifically designed for improving the power and flexibility of Yeastar series IP PBX systems. The Yeastar EX08 has 4 onboard module slots for the future expansion and 8 interfaces on the panel. This board is well supported by the S100 and S300 IP PBX systems.


Yeastar EX30 E1 is specifically designed for improving the power and flexibility of Yeastar series IP PBX systems (S100 and S300). EX30 expansion board supports 1 E1/T1/PRI ports and this can be used in conjunction with the S100 and S300 IP PBX systems for the expansion facilities. It can increase the number of SIP users and concurrent calls as your business grows.


  • 1 port E1/T1 Port Expansion Board for Yeastar S100 and S300 system.
  • Use to up 2 expansion cards on the S100 and up to 3 expansion cards on the S300.

Yeastar YST-GSM provides a single GSM channel of cellular connectivity for your Yeastar IP-PBX. This quad-band GSM radio works on the 850, 900, 1800 and 1900 MHz bands using a SIMCon GSM engine. Yeastar 1 GSM module is a module with 1 GSM channel that could call out by GSM. Yeastar 1 GSM is compatible with MyPBX and S-Series PBX.

Features :
A module with 1 GSM port to terminate GSM network.
It can be used in MyPBX Standard, MyPBX U100, MyPBX U200, MyPBX U5XX, and S-Series VoIP PBX.

GSM Parameters :
GSM channels: 1 Channel
Network types: 850/900/1800/1900 MHz (quad-band)
GSM engine: SIMCom
Transmitter power: +33dBm(2W) 850/900MHz,+30dBm(1W) 1800/1900M
SIM card: 1 SIM per channel, Small plug-in, 3V


Yeastar modular design allows deferent input and output channels to choose from by using different modules. Yeastar MyPBX O2 module enables the pbx system with 2 FXO Ports. FXO ports help the customers to connect the lines from service providers. MyPBX O2 module can be used in all the Yeastar MyPBX Series including the new S series PBX Systems.


  • The O2 is a module with 2 FXO ports to terminate two analog PSTN(POTS) lines.
  • It can be used in MyPBX SOHO, MyPBX Standard, MyPBX E1,
  • MyPBX Enterprise, MyPBX U100, MyPBX U200, MyPBX U5XX and TDM800 Card.

S100 is a cost-effective business communication system with a base configuration of 100 users and 30 concurrent calls,and can scale up to 200 users and 60 concurrent calls. The flexible S100 comes with support for analog ports, ISDN BRI, E1/T1/PRI, and GSM networks.


The Yeastar S2 2FXS module brings two FXS ports to the IP PBX. MyPBX is a line of modular phone systems that let you customize connectivity types. Combine several modules on one IP PBX, and truly interconnect your existing endpoints and services. This FXS module supports devices like analog phones and fax machines.

  • Yeastar S2 Module is a module with 2 FXS ports to terminate two analog telephone. S2 Module 2FXS is compatible with MyPBX series and S-Series PBX.
  • The S2 is a module with 2 FXS ports to terminate two analog telephones. It can be used in MyPBX SOHO, MyPBX Standard, MyPBX Pro, MyPBX E1, MyPBX E1 Plus, MyPBX Enterprise, TDM800 Card.

Product Benefits
• Works with SIP/IAX2, PSTN lines, ISDN BRI, E1/T1/PRI, and GSM/CDMA/3G
• Built-in call recording capability
• Powerful Apps (add-ons) include Auto Provision, LDAP, and more coming soon
• Free lifetime software/firmware upgrade and above all, it's super easy
• Connect multiple sites and remote users instantly
• No hidden charges and extra licensing fees
• Low power consumption (1.8 to 59.1 W)

  • Enterprise-class IP-PBX system built to perform.
  • Supports 300 users and expandable to 500 users.
  • Enterprise-class Communications Tailored for You.
  • Support up to 500 users, Yeastar S300 delivers enterprise-class IP telephony services with a strong presence in scalability, mobility, 3rd-party integration, unified communications, and the ease of use and management.

Easy to use, reliable, and feature-rich, S-Series is designed to help small and medium businesses make a giant leap in efficiency and cost savings. The innovative S-Series unleashes the power of unified communications, provides great flexibility with field-upgradable modular design, and allows you to connect to traditional lines, VoIP lines, and cellular networks. Perfectly future-proof, S-Series converges business-enhancing features with free software updates to grow with your business and assures reliability over the years.


Yeastar SO 1 FXO and 1 FXS lines module is designed to use with Yeastar "MyPBX", to connect analog telephone and analog telephone line (POTS) to MyPBX. The Yeastar SO module adds an FXS and FXO port to compatible Yeastar IP PBX products. Yeastar YST-SO module features one FXS port and one FXO port. Install the module on a compatible Yeastar S-Series or MyPBX phone system. The modular design of the phone systems allow you to customize connectivity types. Use this module to connect an analog phone and a PSTN line, for example.

Product Features :

  • Module with 1 FXS and 1 FXO port
  • Unique PSTN fallback function.Make/receive calls even during a system power break down.
  • Make/receive calls even during a system power breakdown
  • Can be used in a wide variety of Yeastar IP PBX products

Yeastar O2 Module Compatibility:

  • Yeastar S-Series
  • Yeastar MyPBX SOHO
  • Yeastar MyPBX Standard
  • Yeastar MyPBX U100
  • Yeastar MyPBX U200
  • Yeastar MyPBX U500 Series