Grandstream GXP2135 – Technical Specifications

Streamlined Operations

• More Intuitive Web UI- we’ve made changes that make the Web UI easier to navigate and more aesthetically pleasing.
• Simplified call transfer options-now you can attend or send a blind transfer
• Caller ID on transferred calls
• Ability to switch between accounts and see the screen while in a call
• Allow callers to permeate DND by whitelisting them
• Option to send an instant message via the Web UI or the phone
• Streamlined Bluetooth pairing
• Additional options for soft key configuration
• Manage call history through the phone and the Web UI
• Option to add picture images to your contacts

Protocols/Standards

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

Network Interfaces

• Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE

Graphic Display

• 2.8 inch (320×240) TFT color LCD

Bluetooth

• Yes, integrated

Feature Keys

• 8 line keys with up to 4 SIP accounts, 4 XML programmable context sensitive
• softkeys, 5 navigation/menu keys, 11 dedicated function keys for :
  MESSAGE (with LED indicator), PHONEBOOK, TRANSFER, CONFERENCE,
  HOLD, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-

VOLVoice

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

Auxiliary Ports

• RJ9 headset jack (allowing EHS with Plantronics headsets), USB

Telephony Features

• Hold, transfer, forward, 4-way conference, call park, call pickup, shared-callappearance
• (SCA)/bridged-line-appearance(BLA), downloadable phonebook
• (XML, LDAP, up to 2000 items), call waiting, call log (up to 500 records), XML
• customization of screen, off-hook auto dial, auto answer, click-to-dial, flexible
• dial plan, hot desking, personalized music ringtones and music on hold,
• server redundancy and fail-over

HD Audio

• Yes, HD handset and speakerphone with support for wideband audio

Base Stand

• Yes, 2 angle positions available, Wall Mountable

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, SRTP, TLS, 802.1x media access control

Multi-Language

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

Upgrade/Provisioning

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

Power & Green Energy Efficiency

• Universal power adapter included:Input:100-240V ; Output: +12V, 0.5A ;
• Integrated Power-over-Ethernet (802.3af)
• Max power consumption : 6.4W (power adapter) or 6.49W (PoE)

Physical

• Dimension: 201mm(W) x 193mm(L) x 85mm(H); Unit weight:0.85kg ; Package weight:1.12kg

Temperature And Humidity

• Operation: 0°C to 40°C
• Storage: -10°C to 60°C
• Humidity: 10% to 90% Non-condensing