voip internet phone function description：
The Star-net voip internet phone NXD-801 series，which support MGCP、SIP、H.323 Provides high quality voice communication over IP networks,It demonstrates the latest techn-ology and advancements in voip internet phone research,It is simplified operation and configuration are perfect for VoIP Service Provider， Enterprise and Home application， It has a two-port ethernet swith inside which makes it convenient for users to have both their IP Phone and PC connected to networks . NXD-801 supports Static IP config , DHCP Client and PPPOE client and it is suited for a lot different kinds of network enviroments。

voip internet phone（NXD-801）Key Features：
① Support H.323 v4,compatible with most H.323 v1-v4 system and devices；

② voip internet phone Built in H.323 proxy support to pass NAT；

③ voip internet phone Support MGCP RFC2705；Support SIP RFC3261；Support Net2phone private protocol；

④ Outband DTMF transmit by H.245 user input or Q.931 keypad；IEEE 802.3 /802.3 u 10 Base T / 100Base TX；

⑤ user define ring tone；E.164 dial plan and customize dial rules；open source, user individuation firmware；

⑥ DHCP support for automatically assign IP address and relevant parameters；

⑦ Support G.723.1 5.3k/6.3k，G.729，G.711 A-Law、μ-Law audio codec algorithm；

⑧ Tone generation and Local DTMF generation and detection according with ITU-T；

⑨ PPPoE support for ADSL or Cable modem；voip internet phone Upgrade program by FTP mode；

⑩ Setting IP Net Phone parameters by standard web browser (such as IE6.0)phone keypad or standard telnet；

voip internet phone（NXD-801）Electric Spec:
① Ethernet Port --- 1 X 10/100MHz Ethernet Port；● AC/DC power adapter, 9V DC；DC input: 12V DC/800A；

② Storage temperature: -30° to 65° C (-22° to 149°F)；● Operation temperature: 0 to 40° C ( 32° to 104°F)