Grandstream GXP2000

Grandstream GXP2000 Mainstream Enterprise 4-line PoE IP Phone


The Grandstream GXP2000 IP Phone is a next generation, enterprise SIP telephone that is feature rich, easy to use, supports Power-over-Ethernet and is competitively priced.

The Grandstream GXP2000 IP Phone is expandable, secure and easy to manage and offers multiple lines, multiple SIP accounts, advanced functions, superior audio quality and interoperability with most SIP end user devices, IP PBX and Softswitches. The Grandstream GXP2000 IP Phone received the prestigious "2006 Internet Telephony Excellence Award" and the "2005 Product of the Year" award from the Internet Telephony Magazine.

It is ideal for small office and enterprise customers as well as service providers.


  • Open Standards compatible with SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP (both client and servers), PPPoE, TFTP, NTP and TLS
  • Advanced Digital Signal Processing (DSP), silence suppression, VAD, CNG, AEC and AGC giving superb audio quality
  • Custom Ring-tone Software converts most music files to a custom ring tone
  • Standard voice features including caller ID, call waiting, hold, transfer, forward, Intercom, shared call apperances, mute, headset, autodial, off hook dial and click to dial
  • Advanced Functionality in multi-line support, multi-party conferencing, line extensions, headset enabled, TLS SRTP (pending), multi-language support (MLS) and XML enabled


Feature Keys

  • 4 direct lines with 7 speed dial keys
  • Up to 11 line calls (expandable to 112 lines with 2 daisy-chained Grandstream GXP2000EXT)
  • 8 dedicated keys:
    • Message Button
    • Hold
    • Transfer
    • Conference
    • Speakerphone
    • Send
    • Mute/Delete
  • 5 display/menu navigation keys, dual color LEDs

Telephony Features

  • Intuitive graphic user interface
  • Downloadble phone book (XML, LDAP)
  • Muti-language supportt (MLS)
  • Support customizable LCD screen via downloadable XML by HTTP/TFTP
  • Dynamic negotiation of codec and voice payload length
  • Call hold, call transfer (attended/blind), do-not-disturb, call forwarding, mute
  • Redial, call log and volume control
  • Caller ID display or block
  • Call waiting, call waiting caller ID
  • 3-way conferencing
  • Voice mail indicator
  • Downloadable custom ring tones
  • In-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)
  • Support DNS SRV look-up and SIP server fail-over
  • Full-duplex hands-free speakerphone with Acoustic Echo Cancellation (AEC) and AGC
  • Off Hook Auto Dial, Auto Answer, Early Dial and Speed Dial
  • Adaptive jitter buffer control with packet delay and loss concealment


Protocols and Standards

  • SIP RFC3261
  • PPPoE
  • SRTR
  • ICMP
  • DNS
  • DHCP
  • TFTP
  • TLS
  • Support for up to 4 SIP accounts
  • Support for SIP PUBLISH method (RFC 3904), SIP Presence package (RFC 3856, 3863) for use of 7 MFKs and Grandstream GXP2000 IP PhoneEXT, SIP Dialog package (RFC 4235)
  • Support SIP MESSAGE method (RFC 3428) and up to 100 incoming IM messages

Network Interfaces

  • Two RJ45 10/100 Mbps auto-sensing
  • Auto detect Ethernet polarity, allowing straight-through or twisted cable

Graphic Display

  • Back-lit 64x130 pixel graphical LCD display with 8 lines x 22 characters

Voice Codec

  • Support for G.723.1 (6.3K/5.4K), G.729 A/B, G.711 u/A, G.726 (40K/32K/24K), G.722 (wide-band), GSM and iLBC


  • Advanced Digital Signal Processing (DSP)
  • Silence suppression, VAD, CNG, AEC and AGC giving superb audio quality

Headset Jack

  • 2.5mm Headset


  • Layer 2 (IEEE 802.1p/Q VLAN tagging)
  • Layer 3 QoS (ToS, DiffServ)


  • DIGEST authentication using MD5/MD5-sess, SIP over TLS and SRTP secure configuration file (AES)

Upgrades and Provisioning

  • Via keypad/LCD, Web browser or secure (AES encrypted) central configuration file
  • Support NAT traversal using STUN and symmetric RTP
  • Support static IP and DHCP
  • Support auto-provisioning via secure configuration file with authentication verification
  • Support NAT-friendly firmware upgrade via TFTP or HTTP
  • Allow user to specify different URL for configuration file and firmware files

Power & Green Energy Efficiency

  • Input: 100-240VAC 50-60 Hz Output: +5VDC, 1.2A, UL certified
  • Integrated (IEEE 802.3af)



  • 220mm x 215mm x 57mm
  • 0.82kg (1.8lbs)

Temperature and Humidity

  • 32-104°F / 0- 40°C
  • 10%-90% (non-condensing)


  • FCC
  • CE
  • C-Tick

Package Content

  • GXP2000 phone
  • handset with cord
  • base stand
  • universal power supply
  • network cable
  • Quick Start Guide

Where to Buy

Created by: voip_phones, Last modification: Fri 12 of Apr, 2013 (09:32 UTC) by VoIPon
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