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SIP 2.0, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record and SRV), DHCP (client only), PPPoE, TFTP, NTP, Telnet
- 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
- 128x32 pixel graphic LCD with backlight
- 2 lines appearances with individual SIP account profiles and dual-color LED
- Support Caller ID display or block
- Call waiting, hold, mute, transfer (blind or attended), forward, and more
- 3-way conferencing
- 5 navigation/menu keys
- 8 dedicated buttons
- hold, speakerphone, send, transfer, conference, headset, mute, messages
- Full duplex speakerphone w/advanced audio echo cancellation
- Headset jack (RJ11) for broad headset compatibility
- Secure and automated provisioning for mass deployment
- SRTP for privacy protection
- And many more enterprise grade features
- GXP1200
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