Software: * h.323, sip, mgcp, net2phone, iax2 support * dhcp support for LAN or cable modem * pppoe support for ADSL or cable modem * set phone by HTTP web browser (ie6.0) or telnet * upgrade by ftp * support major g.7xx and gsm610 audio codec * vad(voice active detect) * cng (comfort noise generation) * dynamic voice jitter buffer * g.168/165 compliant 16ms echo cancellation * tone generation and local dtmf re-generation according with itu-t * e.164 dial plan and customized dial rules * 100 entries for quick dial * 80 entries each for missed calls, answered calls and dialed calls * adjustable volume for both handset and speaker * voice prompt * hotline Electric spec: * voltage: DC 9v~12v * power adapter: DC 12v/450ma * network intrface:1/2 rj-45 ethernet connectors Specification: *210*170*60 mm (l * w * h)