Yeastar TA FXS VoIP Gateways are cutting-edge products that connect legacy telephones. fax machines and PBX systems with IP telephony networks and IP-based PBX systems. Featuring rich functionalities and easy configuration. TA is ideal for small and medium enterprises that wish to integrate a traditional phone system into any IP-based system. including the Yeastar S-Series.- Stand-alone FXS VoIP gateway with carrier-grade features and reliability.- Fully compliant with SIP and IAX2. also features lexible calling rules.Feature-richA robust feature set that fulfills your various needs and cuts communication costEasySimple and intuitive Web-based configuration saves you loads of timeReliableStable with advanced hardware and software architectureInteroperabilityInteroperable with a broad list of softswitch. PBX. and IP-PBX like Elastix and Lync Server