Grandstream Networks, Inc. GXP21xx User Manual Page 8 of 41
Firmware version: 1.0.1.66 Last Updated: 05/2011
Table 5: GXP21xx Key Features in a Glance
Features Benefits
Open Standards Compatible SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTP
S, ARP/RARP,
ICMP, DNS (A record, SRV and NAPTR), DHCP (both client and s erver),
PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, SIP over TLS, 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, tr ansfer,
forward, block, auto-dial, 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), m ute, 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
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 aut o
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