IP PBX Appliances

O2 is a module with 2 FXO ports to terminate two analog PSTN (POTS) lines.
It can be used for all  model of Yeastar S-Series & P-Series VoIP PBX.

S2 is a module with 2 FXS ports to terminate two analog telephone.
It can be used for all model of Yeastar S-Series & P-Series VoIP PBX.

Unique PSTN Fallback Function! Make/receive calls even when system power breaks down.
It can be used for all model of Yeastar S-Series & P-Series VoIP PBX.

The Yeastar EX08 expansion board has 4 onboard module slots for the future expansion and 8 port RJ-11 for interfaces on the panel. This board is well supported by the Yeastar S-Series models (S100 and S300) and Yeastar P-Series models (P560 and P570) IP PBX systems.

• EX08 Expansion Board support Yeastar S-Series models (S100 and S300) and Yeastar P-Series models (P560 and P570) 
• Supports up to 4 optional modules(8 RJ-11 Interface port), supporting Yeastar Module: O2, S2, BRI, GSM, CDMA, and UMTS/3G modules
• Support up to 2 expansion cards to S100 and P560 and 3 expansion card to the S300 and P570

**^(optional) If required ?, You can add or customize up to 4 optional module cards: (8 analog port (FXO/FXS/BRI)) and/or 4 channel of GSM/CDMA/3G  in your EX08 Expansion Boards according to your requirements below.

The Yeastar EX30 expansion board adds 1 port E1/T1/PRI (onboard) to Yeastar S-series (S100 and S300), also Yeastar P-series (P560 and P570). When you need to connect your VoIP phone system to a digital phone system, the EX30 makes it simple

• EX30 Expansion Board support for Yeastar S-series (S100 & S300) and Yeastar P-series (P560 & P570).
• EX30 has onboard 1 port E1/T1/PRI for digital phone system in one EX30 Expansion Board
• Used to up 2 expansion cards on the Yeastar S100 & Yeastar P560 IP PBX and up to 3 expansion cards on the Yeastar S300 & Yeastar P570 IP PBX.