Telesail Technology Co., Ltd is a professional manufacturer of innovative VoIP equipment and mature serials of EPON products .We offer a full line of VoIP products including IP-PBX series, VoIP Access Gateways, Trunking gateways, VoIP Phones and network products. also we provide VoIP systems and solutions for Call cener, Hotel, Office IPPBX, Service providers; With multiple types of design for high density and cost-effective, Telesail also offers a full range of EPON OLT and ONU series equipment and flexible POS series splitter ,cost-competitive optical transceiver modules to meet end to end deployment for FTTx.