IP PHONE	Gateway
>>I F Series [SIP,IAX2]                    >>AR Series [SIP,IAX2]                    >>CM Series [SIP,VPN]                    >>PA Series [SIP,H323...]	>>I F Series [SIP,T.38]                    >>CM Series [SIP,L2TP]                    >>PA Series [SIP,H323...]
USB Series
>>YUS10 USB PHONE                   >>YUS20 USB PHONE                   >>YHY10 USB Conference Box