Yeastar SO Module — 1 FXS + 1 FXO Expansion Module

The Yeastar SO Module adds one FXS port and one FXO port to compatible Yeastar VoIP PBX systems, providing analog extension and PSTN line support with PSTN failover capability for uninterrupted telephony. Supports key Yeastar S‑Series and P‑Series platforms.

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Description

Yeastar SO Module — Combined FXS & FXO Port (PSTN Fallback) for PBX

The Yeastar SO Module is a versatile expansion unit designed to enhance the telephony capabilities of compatible Yeastar VoIP gateways and PBX systems. Combining 1 FXS port and 1 FXO port, this module enables both analog extension support and PSTN line connectivity, offering flexible deployment options for hybrid telephony environments.

With the integrated FXS port, the SO Module allows analog devices such as desk phones, fax machines, and POS terminals to connect to VoIP systems. Meanwhile, the FXO port provides connectivity to traditional PSTN telephone lines, enabling seamless call routing between legacy networks and modern IP-based communication platforms.

Ideal for small to medium business setups, branch offices, or locations with mixed analog and PSTN requirements, the Yeastar SO Module delivers reliable voice quality, efficient call management, and expanded telephony support — all without requiring separate gateway units.

Shipping and Delivery

FAST & RELIABLE DELIVERY ACROSS EGYPT

At Da3m Networking Store, we make sure your networking equipment reaches you safely and on time. Every order is carefully inspected, securely packaged, and dispatched through trusted shipping partners to protect your devices during transit.

SHIPPING & DELIVERY DETAILS

elivery to Cairo and Giza within 1–3 business days, and to other governorates within 3–7 business days.
Shipping fees are calculated based on your delivery address.
You will receive an order confirmation and tracking updates as soon as your order is dispatched.
Please inspect your package upon delivery and report any damage within 24 hours.
Orders are processed within 1–2 business days after payment confirmation. Delivery times may vary during holidays or for special-order items that are not currently in stock. For large or project-based orders, contact our team and we will arrange the best shipping option for you.

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