Connect Your Analog Phones to Your IP-PBX
Yeastar’s VoIP FXS gateway lets you turn your analog phones, fax machines, and other equipment into IP extensions while protecting your investment.
Effortless Transition to VoIP
Yeastar’s VoIP FXS gateway lets you turn your analog phones, fax machines, and other equipment into IP extensions while protecting your investment.

Key benefits
Telephony Features
3‑way conferencing, call transfer, distinctive ringing, and flexible dial plan.
Fax over IP
T.38 support for reliable faxing over the IP network.
Interoperability
Compatible with a wide range of softswitches, analog PBXs, and SIP environments.
Easy Provisioning
Intuitive web interface for quick, effortless configuration.
Security
TLS, SRTP, and HTTPS encryption to protect every call.
Remote management
Monitor, manage, and configure gateways from a centralized dashboard.
Legacy Equipment Integration
For businesses looking to migrate to a SIP environment, Yeastar’s FXS gateway enables analog phones, fax machines, time-stamping machines, and alarms to be integrated into the IP network without disrupting operations.

Benefits for Your Customers
Keep your existing equipment, reduce long-distance call costs, connect remote extensions to your call center, and migrate to VoIP at your own pace.

Seamless Connectivity
Analog extensions work like IP extensions, providing all your PBX features without major reconfiguration.
Complementary Solutions
Discover the P‑Series and S‑Series systems and Linkus UC clients, as well as TA FXS/FXO gateways to expand your infrastructure.
