VoIP
by InstaNet

Voice Over Internet Protocol


We Recommend the GXP-2000 Enterprise
IP Telephone for Price, Features, Reliability

Grandstream GXP-2000 is a next generation enterprise IP telephone based on open industry standards. Built on innovative technologies, GXP-2000 features market leading superb audio quality, rich functionalities, and excellent manageability at affordable prices.

    Main Features:
  • Support SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP, PPPoE, TFTP, NTP
  • Support NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE), and more
  • Multiline support of up to 11 lines indicators (expandable to a few dozen more through expansion key-module)
  • Graphical LCD to display up to 8 lines and 22 characters per line
  • Dual 10/100Mbps Ethernet ports
  • Headset jack
  • Support Caller ID display or block, per call or permanent
  • Call waiting, Hold, Mute, Transfer (blind or attended), Forward, and more
  • Multi-party conferencing
  • Integrated Power-over-Ether (802.3af)
  • And many more enterprise-grade features