Brief Description: - IT-I701 IP phone is an internet based voice network phone terminal. PHONE series IP phone adopts multiple voice control protocols and voice compression coding methods to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service. - IT-I701 IP phone supports IAX2, SIP, protocols, Support Bridge and Router model. Support IAX2 and dual public server, offers Two Ethernet interface and is compatible with various softswitch systems and VoIP voice gateways to provide broadband IP voice service. Interfaces: - 1 X WAN - 1 X LAN Voice Features: - Support Bridge and Router model - Power Over Ethernet(Optional Parameters) - Support IAX2 and dual sip public server - Call hold; - Unattended/ attended call transfer - Call waiting and per call-waiting blocking - Call forward (Always, busy, no answer, power off) - VOIP speed dial - VOIP digital map - User define ring tone - E. 164 dial plan and customize dial rules - Caller number/name display - Voice promote - Configurable jitter buffer size - Configurable audio frame - Call control: SIP RFC3261, H323, Tone generation and Local DTMF re-generation according with ITU-T - voice algorithms: G. 711, G. 723. 1, G729/iLBC, AGC, AEC, VAD, CNG, G. 168/165 compliant 16ms echo cancellation Network Features: - MAC Address - TCP: Transmission Control Protocol - DHCP: Dynamic Host Configuration Protocol - PPPoE: PPP Protocol over Ethernet - SNTP, Simple Network Time Protocol - STUN - Simple Traversal of User Datagram... - TOS: Type of service - DNS: Domain Name Server - Support Bridge and Router model. - RTP: Real-time Transport Protocol - RTCP: Real-time Control Protocol - Telnet: Internet's remote login protocol - HTTP: Hyper Text Transfer protocol - FTP: File Transfer protocol - TFTP: Trivial File Transfer Protocol - Static/Dynamic WAN-IP-Addressing Management and Provisioning: - Http, telnet, keypad - Adjustable user password and super password - URL based FTP, HTTP and TFTP auto provision - Configure file download and upload by - Support four settings storage, switch by keypad - Safe mode provide reliability - Four servers store and load by