yeastar modules and accessories

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.

The yeastar modules and accessories include S2 Module with 2 FXS Ports Add 2 analog telephones, O2 Module with 2 FXO Ports and 2 analog PSTN (POTS) lines, SO Module with 1 FXS Port & 1 FXO Port, GSM Module with 1 GSM Channel, 4G LTE Module with 3G/4G Voice Call & Data

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, S50 and S412 supports 4. S100 and S300 require the combination of Expansion Board and Telephony Module to add telephony interfaces. S100 allows 2 Expansion Boards and S300 supports 3.

Techology Interfaces

Telephony Modules Available
Supported Model: S412, S20, S50, S100, S300

• S2 Module
• 2 FXS Ports
• Add 2 analog telephones.
• O2 Module

2 FXO Ports

• Connect 2 analog PSTN (POTS) lines.
• SO Module

1 FXS Port & 1 FXO Port

• Unique PSTN Fallback Function
• B2 Module