Grandstream GXP2120 Executive 6-Line IP Phone

Features:

• 6 dual-color line keys (with 6 SIP accounts), 4 XML programmable context-sensitive soft keys, up to 5-way conferencing, and up to 13 call appearances with 7 dual-color BLF extension keys
• Support SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP(both client and server), PPPoE, TFTP, NTP
• Dual switched 10/100Mbps Ethernet ports w/integrated Power-over-Ethernet (802.3af)
• Support NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE), and more
• Generous 320x160 pixel backlit graphical LCD display with up to 8 level grayscale
• 6 lines indicators with individual SIP account profiles
• 7 programmable hard keys and 4 XML programmable context-sensitive soft keys
• Multi-line support of up to 13 call appearance lines with dual-color LED indicators
• Expandable to additional 112 lines through expansion key-modules
• Support Caller ID display or block, per call or permanent
• Call waiting, hold, mute, transfer (blind or attended), forward, and more
• Multi-party conferencing (up to 5-way)
• Full duplex speakerphone w/advanced audio echo cancellation
• Headset jack (2.5 mm and RJ9) for broad headset compatibility
• Phonebook storage capability of up to 2,000 contacts and call history of up to 2,000 records
• 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