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Scalable and Modular S-Series VoIP PBX

modular

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.

Add Telephony Interfaces

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.

S20

Telephony Modules Available

S2 Module

2 FXS Ports
Add 2 analog telephones.

S2 Module

2 FXO Ports
Connect 2 analog PSTN (POTS) lines.

SO Module

1 FXS Port & 1 FXO Port
Unique PSTN Fallback Function

B2 Module

2 BRI Ports
2 x NT/TE BRI Ports

GSM Module

1 GSM Channel

1 Channel for GSM Voice Calls Frequency: 850/900/1800/1900 MHz (quad-band)

3G Module

1 WCDMA Channel

1 Channel for WCDMA Voice Calls Frequency: 900/2100 MHz, 850/2100 MHz, 850/1900 MHz

4G LTE Module

3G/4G Voice Call & Data

Insert 4G module on Slot_1 of S20&S50 and Slot_1 of EXP 1 of S100&S300

Expansion Board

EX08 has 4 onboard module slots and 8 interfaces on the panel.
Supported Model: S100 and S300

EX30 has 1 onboard E1/T1/PRI port.
Supported Model: S100 and S300