Grandstream GAC2500, IP Multimedia Conference Phone, Android OS, 6 SIP Accounts and 7-way voice conferencing,

Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x,
TLS, SRTP*, IPV6 (expected), OpenVPN (expected)

Network interface
Gigabit Ethernet port with auto-detection and built-in PoE+ (IEEE
802.3at Class 4)

Graphic display
4.3” IPS LCD display with 800x480 resolution

Microphone
3 cardioid microphones; capture distance 12 ft., 360° coverage

Speaker
Frequency: 220-14,000 Hz
Volume Up to 86 dB at 0.5 meters

Bluetooth
Yes, built-in. Bluetooth 4.0

Wi-Fi
Yes, built-in. 802.11 b/g/n

Additional ports
3.5mm audio port, USB Micro-B, RJ48 flex port

Speech codecs
Support G.711µ/a, G.722, G.726, iLBC, Opus, G.722.1 and G.722.1c (expected),
In-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), G.729A/B,
VAD, CNG, AEC, PLC, AJB, AGC

Telephony functions
6 SIP accounts, retention, forwarding, translation, 7-way
conference, call parking, call interception, downloadable
phonebook (XML, LDAP, up to 2000 entries), call waiting, call history
(up to 2000 entries), XML screen setup, automatic call reception,
mouse-click dialing, flexible number plan, "hot" workplace,
personalized ringtones and music on hold,
server reservation and switching in case of failure

Application Examples
Web browser, Adobe Flash, Facebook, Twitter, YouTube, Google Calendar,
import/export data from a mobile phone via Bluetooth, etc. API/SDK
is available for advanced development of user applications

HD Audio
Yes, a speaker with broadband audio support

QoS
Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS.

Safety
User and administrator level access control
, MD5 and MD5-sess authentication, 256-bit configuration file protected
by AES, TLS, SRTP*, HTTPS, 802.1x media access control

Multi-language support
English, German, Italian, French, Spanish, Portuguese,
Russian, Croatian, Chinese, Korean, Japanese, etc.

Update/Provision of services
Firmware update via TFTP/HTTP/HTTPS or local HTTP download,
mass connection using TR-069 or AES encrypted
XML configuration file

Energy consumption and environmental efficiency
Universal power supply: Input: 100-240VAC 50-60Hz; Output: 12VDC,2A (24W)

Physical properties
Dimensions: 280mm(W) x 285mm(L) x 60mm(H) Weight:1.34kg; Package weight: 2.35kg

Temperature and Humidity
Operation: from 0°C to 40°C
Storage: -10°C to 60°C
Humidity: from 10% to 90% without condensation

Contents
of the delivery set
Phone GAC2500, Universal power supply, Network cable, USB cable,
RJ48 cascade cable, Quick Installation Guide

Accordance
FCC: Part 15(CFR 47) Class B, FCC Part 15C 15.247; UL 60950 (power adapter).
CE: EN 55032,EN 55035,EN 61000-3-2,EN 61000-3-3,ETSI EN 301 489-1,ETSI EN 301
489-17, ETSI EN 300 328, EN 60950-1,EN 62311, RoHS.
RCM: AS/NZS CISPR 32, AS/NZS 60950.1, AS/NZS 4268.