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Grandstream enterprise grade IP phone - Expandable, secure and easy to manage - 4 dual-color line keys (with 4 SIP accounts), 3 XML programmable context-sensitive soft keys, up to 5-way conference, and up to 11 call appearances with 7 dual-color BLF extension keys - HD wideband audio, superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation and excellent double-talk performance - Automated phone book synchronization with directory server using XML - Integrated real-time web applications (weather, stock, currency, RSS news, etc.) - Back-lit 180x90 graphical LCD display with up to 8 level grayscale - Support SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), PPPoE, TFTP, NTP, DHCP (client only) - Support NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE), and more - Dual 10/100Mbps Ethernet ports - Both RJ9 and 2.5mm jacks for professional and casual use - Support Caller ID display or block, per call or permanent - Call waiting, hold, mute, transfer (blind or attended),forward, and more - 3-way conferencing - Integrated Power-over-Ethernet (802.3af) - Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security protection, 802.1x for media access control - Automated personal information service (e.g., local weather, stock, currencies, RSS news, etc), personalized music ring tone/ring back tone/music-on-hold, flexible customizable screen content & format using XML, and advanced Web and enterprise applications integration (pending) - Large phonebook (up to 2,000 contacts) and call history (up to 2,000 records) - And many more enterprise grade features - SIP compliant and protocols - SIP, TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP, PPPoE, TFTP, NTP, etc. - Networking interfaces - Dual 10/100mbps Ethernet ports - Voice codecs - G.711 (a/u-law), G.723.1, G.729A/B, G.726, iLBC, and G.722 (wideband) - Superb audio quality - Advanced Digital Signal Processing (DSP), Silence suppression, VAD, CNG, AGC. HD handset with HD wideband codec - Custom ringtone software - Convert most music files to a Grandstream ringtone - Advanced Functionality - Multi-line support, multi-party conferencing (5-way), multi-language support (MLS), headset enabled, expandable, intercom, AES encryption, etc. - Cost-effective IP solution - Small to Medium enterprise office IP Phone - GXP2100
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