... ; c). NAT router; d). simple Firewall, e). middleware for intelligent home furnishing (U-Home) etc. It is a suitable device for building family ... to internet by PC through RJ45, or by notebook through wireless as well, and make an IP call at the same ... , MD5 authentication, CID, call forward, call waiting, hot-line call, alarm clock, and all kinds of value-added voice service.17 ...