The Yeastar SO 1FXS+1FXO is an analogue expansion module designed for Yeastar S-Series IP PBX systems. It provides one FXS (Foreign Exchange Subscriber) port for connecting an analogue telephone or fax machine, and one FXO (Foreign Exchange Office) port for connecting to an analogue PSTN line or legacy PBX trunk.
This module enables hybrid telephony deployments where businesses need to integrate traditional analogue devices and lines alongside modern VoIP infrastructure. The FXS port allows users to retain existing analogue endpoints, while the FXO port provides a backup PSTN connection or enables connection to legacy telephone systems.
The SO module is intended for installation in Yeastar S-Series PBX platforms, offering a cost-effective method to expand analogue connectivity without replacing the core IP telephony system. It is particularly useful for small to medium businesses transitioning from legacy telephony or requiring PSTN failover capability.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.
Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.
Frequently asked questions
Is the Yeastar SO 1FXS+1FXO refurbished or new?
Tech-Star supplies both new and refurbished Yeastar SO 1FXS+1FXO. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Yeastar SO 1FXS+1FXO?
Refurbished Yeastar SO 1FXS+1FXO comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the Yeastar SO 1FXS+1FXO?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the Yeastar SO 1FXS+1FXO be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the Yeastar SO 1FXS+1FXO be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.