Features: 1) PSTN function 2) Supports fixed IP address, DHCP dynamic distribution of IP addresses and gets inner packing address through PPPoE 3) Sets different working status through IE and Telnet with its specific IP phone tool available 4) Realizes communication from VOIP to Landline, VoIP to VoIP and Landline to VoIP 5) Supports kinds of proxies such as DHCP, TELNET and HTTP 6) Code and encode through G.7 XX signal