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Grandstream Networks, Inc. GXP User Manual Page 9 of 38
Firmware 1.1.6.44 Last Updated: 12/2008
Table 4: GXP Comparison Guide
Features GXP-280 GXP-1200 GXP-2000 GXP-2010 GXP-2020
LCD Display
128x32 pixel 128x32 pixel 130x64 pixel 240x120 pixel 320x160 pixel
Number of Lines
1 2 4 4 6
Programmable
Hard Keys
No No 7 18 7
Soft Keys
3 3 No 3 4
Extension Module
No No
Yes, up to 2
Expansion
Modules, 56
nodes each
Yes, up to 2
Expansion
Modules, 56
nodes each
Yes, up to 2
Expansion
Modules, 56
nodes each
Table 5: GXP Key Features in a Glance
Features Benefits
Open Standards Compatible
SIP 2.0, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP,
DNS (A record and SRV), DHCP (both client and server), PPPoE,
TFTP, NTP, Telnet, and TLS (pending).
Superb Audio Quality
Advanced Digital Signal Processing (DSP), Silence suppression,
VAD, CNG, AGC.
Network Interfaces
Dual 10/100mbps Ethernet ports, headset jack (RJ22 and/or 2.5mm
jack).
Feature Rich
Traditional voice features including caller ID, call waiting, hold,
transfer, forward, block, autodial, off-hook dial, and click to dial.
Advanced Features
Multi-line support with dual-color LED (except on GXP-280), multi-
party conferencing, line extension interface, large back-lit (except on
GXP-280) graphic LCD, 5 or 3 navigation keys, dedicated buttons for
hold, send, speakerphone, headset, transfer, conference (for up to 5
parties depending on model), mute, message, Do-not-disturb, phone
book, intercom/paging.
Advanced Functionality
Custom down-loadable ring-tones, SRTP, SIP over TLS (pending),
multi-language support and XML enabled, adjustable positioning
angles, wall mountable, AES encryption.
Table 6: GXP Hardware Specifications
LAN Interface (Ethernet ports)
Two (2) 10/100 Mbps Full/Half Duplex Ethernet Switch with LAN and PC port
with auto detection
Graphic LCD Display
GXP-280 GXP-1200 GXP-2000 GXP-2010 GXP-2020
128x32
pixel
128x32
pixel
130x64
pixel
240x120
pixel
320x160
pixel
Expansion Module Support
GXP-280 GXP-1200 GXP-2000 GXP-2010 GXP-2020
No No Yes Yes Yes
Headset Jack