Điện thoại hội nghị Grandstream GAC2500

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 (pending), OpenVPN (pending)

Network Interface

Auto-sensing Gigabit Ethernet port with integrated PoE+ (IEEE 802.3at Class4)

Graphic Display

4.3 inch IPS LCD with 800 x 480 resolution

Mic

3 cardioid microphones; 12 ft. pickup distance

Speaker phone

Frequency: 220-18,000 Hz

Volume: Up to 86 dB at 0.5 meter

Bluetooth

Yes, integrated. Bluetooth 4.0

Wifi

Yes, integrated. 802.11 b/g/n

Auxiliary Ports

3.5mm audio port, USB Micro-B, RJ48 daisy chain port

Voice Codecs

Support for G.711µ/a, G.722, G.726, iLBC, Opus, G.722.1 and G.722.1c (pending), in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO)

Telephony Features

6 SIP accounts, hold, transfer, forward, 7-way conference, call park, call pickup, downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 2000 records), XML customization of screen, auto answer, click-to-dial, flexible dial plan, hot desking, personalized music ringtones and music on hold, server redundancy and fail-over

Sample Applications

Skype, Google Hangouts, Skype for Business (Lync), Web browser, Adobe Flash, Facebook, Twitter, YouTube, Google calendar, mobile phone data import/export via Bluetooth, etc. API/SDK available for advanced custom application development

HD Audio

Yes, speakerphone with support for wideband audio

QoS

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

Security

User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control

Multi-language

English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Chinese, Korean, Japanese, and more

Upgrade/ Provisioning

Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass provisioning using TR-069 or AES encrypted XML configuration file

Power & Green Energy Efficiency

Universal Power Supply: Input:100-240VAC 50-60Hz; Output: 12VDC, 2A (24W)

Compliance

FCC: Part 15 (CFR 47) Class B; UL 60950 (power adapter) CE: EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, EN62479, RoHS RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 4268

Temperature and Humidity

Operation: 0ºC to 40ºC

Storage: -10ºC to 60ºC

Humidity: 10% to 90% Non-condensing

Unit dimension

280 x 285 x 60 mm

Weight

Unit: 1.34 kg

Package: 2.35 kg