Grandstream GXP285

Features

• 128 x 32 pixel graphical LCD with support for multiple languages
• 1 line SIP account and 2 call appearances (allowing 2 simultaneous calls and 3-way conference)
• 3 context sensitive soft keys
• HD wideband audio, full-duplex speakerphone with advanced acoustic echo cancellation
• Dual switched auto sensing 10/100 Mbps network ports, Power over Ethernet
• Secure and automated provisioning for mass deployment, SRTP

Feature Keys

• 3 dynamic context sensitive soft keys
• 3 navigation/menu/volume keys
• 7 dedicated function keys for:
  • Hold
  • Speakerphone
  • Send
  • Transfer
  • Conference
  • Flash
  • Headset

Telephony Features

• Hold
• Mute
• Transfer
• Forward
• 3-way Conference
• Downloadable Phone Book (XML, LDAP up to 200 items)
• Call Waiting
• Call Log
• Off-hook Auto Dial
• Auto Answer
• Click-To-Dial
• Downloadable Ringtones
• Server Redundancy
• Fail-over Support

Protocols and Standards

• SIP RFC3261
• TCP/IP/UDP
• RTP/RTCP
• HTTP
• ARP/RARP
• ICMP
• DNS (A record and SRV)
• DHCP
• PPPoE
• TFTP
• NTP
• STUN
• SIMPLE

Voice Codec

• Support for:
  • G.723.1
  • G.729 A/B
  • G.711 u/a-law
  • G.726
  • G.722 (wide-band)
  • GSM and iLBC, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)

Headset Jack

• 2.5mm and RJ22 headset jack

QoS

• Layer 2 (802.1Q, 801.2p) and Layer 3 (ToS, DiffServ, MPLS) QoS

Security

• User and administrator level passwords
• MD5 and MD5- sess based authentication
• AES based secure configuration file
• SRTP

Languages

• English
• Spanish
• French
• German

Upgrades and Provisioning

• Firmware upgrade via TFTP/HTTP
• Mass deployment using central secure provisioning file

PoE (Power over Ethernet)

• Integrated (IEEE 802.3af)

Power

• Universal power adapter (Input: 100-240VAC 50-60Hz, Output:+5VDC, 1.2A, UL Certified) included

Physical

• Dimension: 168mm x 200mm x 89.5mm
• Unit weight: 0.62kg
• Package weight: 0.725kg

Temperature and Humidity

• 32-104 °F / 0-40 °C
• 10-90% (non-condensing)

Compliance

• FCC
• CE
• C-Tick