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Grandstream Networks, Inc. GXP21xx User Manual Page 8 of 48
Firmware version: 1.0.1.110 Last Updated: 01/2012
Table 5: GXP21xx Key Features in a Glance
Features Benefits
Open Standards Compatible
SIP RFC3261, TCP/IP/UDP, RTP, HTTP/HTTPS, ARP/RARP, ICMP,
DNS (A record, SRV and NAPTR), DHCP (both client and server),
PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, 802.1x, TR-069
Superb Audio Quality
Advanced Digital Signal Processing (DSP), Silence Suppression, VAD,
CNG, AGC
Network Interfaces
Dual 10/100mbps Ethernet ports with integrated PoE
Feature Rich
Traditional voice features including caller ID, call waiting, hold, transfer,
forward, block, auto answer, off-hook dial
Advanced Features
Multi-line support with dual-color LED, multi-party conferencing, line
extension interface, large backlit graphic LCD, 4 navigation keys,
dedicated buttons for hold, send/redial, speakerphone, headset, transfer,
conference (for up to 5 parties depending on model), mute, message, Do-
Not-Disturb, phone book, intercom
Advanced Functionality
Customized downloadable ring-tones, SRTP, SIP over TLS, multi-
language support and XML enabled, adjustable positioning angles, wall
mountable, AES encryption, automatic multimedia service (eg., weather,
stock and currency information)
Table 6: GXP21xx Hardware Specifications
Model GXP2120 GXP2110 GXP2100
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
320x160 pixel 240x120 pixel 180x90 pixel
Expansion
Module Support
Yes No
Headset Jack
2.5mm and RJ9
Call Appearance
LED
13 Dual color (green/red)
22 Dual color (green/red)
11 Dual color (green/red)
Power over
Ethernet
Built-in auto-sensing: Cisco and IEEE 802.3af standard
Universal
Switching
Input: 100-240VAC 50-60
Hz
Input: 100-240VAC 50-60
Hz
Input: 100-240VAC 50-60
Hz
Power Adaptor
Output: +5VDC, 800mA,
UL certified
Output: +5VDC, 800mA,
UL certified
Output: +5VDC, 800mA,
UL certified
Dimension
251mm(W) x 202mm(L) x
77mm(H)
252mm (W) x 210mm (L) x
78mm (H)
222mm (W) x 210mm (L)
x 93mm (H)
Weight
1.66KG (3.64lbs) 1.78KG (3.92lbs) 1.63KG (3.59lbs)
Temperature
32 –104
°
F/ 0 – 40
°
C
9


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