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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
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Description
Yeastar SO Module – 1 FXO + 1 FXS Port Module, PSTN Failover Support, Echo Cancellation, for S-Series & P-Series PBXYeastar SO Module Key Product Specifications: Manufacturer: Yeastar Model: SO Module Product Type: FXO FXS Module Port Type: 1 FXO RJ11, 1 FXS RJ11 Supported PBX Models: S20, S50, S100, S300, P550, P560, P570 FXO Ring Frequency Detection: 1550 Hz FXS Ring Frequency: 25 Hz Ring Voltage: 85V Termination Support: PSTN lines and analog telephone fax Failover Function: Supported Echo Cancellation: Supported Terminating Impedance: 600 Ohm Yeastar SO Module
Yeastar SO Module Key Product Specifications:
- Manufacturer: Yeastar
- Model: SO Module
- Product Type: FXO/FXS Module
- Port Type: 1 × FXO RJ11, 1 × FXS RJ11
- Supported PBX Models: S20, S50, S100, S300, P550, P560, P570
- FXO Ring Frequency Detection: 15–50 Hz
- FXS Ring Frequency: 25 Hz
- Ring Voltage: 85V
- Termination Support: PSTN lines and analog telephone/fax
- Failover Function: Supported
- Echo Cancellation: Supported
- Terminating Impedance: 600 Ohm
Yeastar SO Module is a dual-port FXO/FXS module designed to provide automatic PSTN failover functionality for Yeastar PBX systems at best price. Featuring one FXO port and one FXS port, the module ensures uninterrupted communication by directly bridging analog telephones to PSTN lines during power outages or system failures. With support for analog phones, fax machines, and PSTN connectivity, along with built-in echo cancellation and impedance adjustment, the SO Module delivers reliable voice communication and enhanced business continuity.
Yeastar SO Module Key Product Features:
- 1 FXO + 1 FXS port with auto failover function
- Ensures call continuity during power outage
- Supports analog phones, fax machines, and PSTN lines
- Built-in echo cancellation
- Compatible with Yeastar S-Series and P-Series PBX systems
- Direct PSTN bridging during system failure
- Supports impedance adjustment for reliable operation
- Designed for uninterrupted business communications
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Check Sizing
Size: X-Large, Color: Yellow Golden
check with manufactuer on sizing if unsure - tends to run small....but good quality
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Boys Formal suit
Size: 10 Years, Color: Champagne, Size: 10 Years, Color: Champagne
This formal suit is perfect for weddings, or any formal function. It is true to size. The pants run a little long. The material is shiny. The suit is worth the money, and actually looks like it cost more than what it did. There is not adjustable waist. You have to wear a belt with it. This outfit will make you feel rich in spirit. My son was so adorable in this outfit.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Nice!
Size: 10 Years, Color: Black
Beautiful tux, returned because I was not sure of my grandson’s size.
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Reviewed in the United States on May 15, 2026
★★★★★ 4
Runs Big
Size: 16 Years, Color: Black, Size: 16 Years, Color: Black
The material , quality 10/10 Fit 7/10 l had to get alterations done after ordering two different sizes my son is in a size 18 we sized down to a 16 and 14 and one was too big or too small the 18 was extremely big on him overall the suit is a great value 4/5 stars only because of the sizing issue we still encountered.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Recomendado
Size: 12 Years, Color: Black, Size: 12 Years, Color: Black
Excelente calidad y precio , lo usó mi esposo en nuestra boda
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Reviewed in the United States on May 2, 2026