Features

◇ Two line/call appearances with LEDS
◇ Desk and Wall-mount
◇ Call transfer (blind or consultative)
◇ Call hold, call waiting, and call forwarding
◇ 8 distinctive ring tone
◇ Volume and Ringer level control
◇ Do not disturb
◇ Paging/intercom
◇ Auto answer
◇ Configurable dial plan

User Interface
◇ Keypad dialing
◇ Voicemail retrieval via keypad or programmable keys
◇ 1～5 programmable keys for speed dial or feature access
◇ Volume and Ringer level control

Configuration and Management
◇ Simple Web-based configuration and status check
◇ Auto-provisioning using TFTP/FTP
◇ Update phone book remotely via web browser
◇ Software upgrade via TFTP or FTP

Enterprise Functionality
◇ 802.3af Power over Ethernet
◇ VLAN and DSCP
◇ VPN

Difference between XY-708A and XY-708B
◇ XY-708VP-A
Support adapter, don’t support PoE, on WAN port.
◇ XY-708VP-B
Support PoE, don’t support adapter, two ports WAN and LAN

Technical Specification
Protocols Supported:
◇ SIP (RFC3261, RFC3262)
◇ SDP (RFC2327)
◇ (SIP) Subscribe/Notify(RFC3265)
◇ (SIP) Offer/Answer Model (RFC3264)
◇ (SIP) Refer Method (RFC3515)
◇ DTMF transport (RFC2833)
◇ SIP INFO and in-band DTMF transport
◇ RTP/RTCP (RFC3550,3551)
◇ IAX2
◇ Peer to Peer calling

Networking:
◇ Support basic NAT and NAPT
◇ Support PPPoE for xDSL
◇ Support DHCP Client on WAN
◇ Support DNS Relay, SNTP Client, Firewall
◇ Network tools in telnet server: Including ping, trace route, telnet client

QoS:
◇ DiffServ/IP Precedence; IEEE802.3p

Audio/Codec:
◇ G.711 A law and G.711 U law 64K
◇ G.729
◇ G.723.1
◇ DTMF tone Generation
◇ Acoustic echo cancellation
◇ Built-in audio mixer

Security:
◇ Voice encryption (RC4,etc.)

User level configuration and status:
◇ Brower based configuration interface and status page
◇ Edit the programmable keys using web interface