AddPac AP-GS808 8-port GSM VoIP gateway series provide high-performance VoIP to GSM gateway solution including IP-routing services for small enterprise, public offices and small call termination service provider. AddPac AP-GS808 8-port GSM VoIP gateways consist of three (3) product line up like as AP-GS808W, AP-GS808S, AP-GS808. This product uses the state-of-art technology voice compressed algorithm and unique QoS algorithm of AddPac to maintain the maximum voice quality under fast internet line and slow internet line as well. This product is designed based on high performance RISC CPU + DSP structure; still body chassis, supports firmware upgrade, the best quality product, offers various user-friendly functions, and this product gives high performance for its price. AP-GS808 series also support SIP, H.323 dual VoIP signaling protocol, various voice codec support (G.711, G.726, G.729, G723.1), eight(8) channel GSM interface (antenna, SIM Card), two(2) fast ethernet ports, 1-port RS232C console and state-of-art technologies and services.