The GXP2135 by Grandstream features 8 lines, with 8 dual-color line keys, 4 SIP accounts, two Gigabit network ports, built in bluetooth, HD audio, EHS support, built in USB port, 4-way audio conferencing, and is PoE enabled.

SKU: GRA-GXP2135 Category:

Manufacturer: Grandstream


The GXP2135 is an enterprise-grade IP phone that supports Gigibit speeds and up to 32 virtual BLF/speed-dial keys, making it ideal for busy workers. This Enterprise IP Phone features up to 8 lines/line keys and 4 SIP accounts using a 2.8 inch color display LCD and full HD audio. The GXP2135 includes up to 32 digital, on-screen speed dial/BLF keys to help users be more productive and efficent. This Enterprise IP Phone supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets. The GXP2135 is the perfect choice for business users looking for a powerful and reliable IP phone with advanced functionality.


Grandstream GXP2135 Core Features:


  • 8 lines, 8 dual-color line keys (with 4 SIP accounts), 4 XML programmable context-sensitive soft keys
  • Dual switched auto-sensing 10/100/1000Mbps Gigabit network ports
  • 32 digitally programmable & customizable BLF/fastdial keys
  • Built-in Bluetooth for syncing headsets and mobile devices for contact books, calendars & call transferring
  • HD audio to maximize audio quality and clarity; full duplex speakerphone
  • Built-in PoE to power the devices and give it a network connection
  • Supports EHS compatible Plantronics’s headsets
  • Automated provisioning options include TR-069 and XML config files
  • Built-in USB port for importing and exporting data
  • TLS and SRTP security encryption technology to protect calls and accounts
  • 4-way audio conferencing for easy conference calls
  • Use with Grandstream’s UCM series IP PBX appliance for Zero-Config provisioning, 1-touch call recording & more


Network Interfaces Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports withintegrated 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 sensitivesoftkeys, 5 navigation/menu keys, 11 dedicated function keys for :MESSAGE(with LED indicator), PHONEBOOK, TRANSFER, CONFERENCE, HOLD,HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-
Voice Codec Support for G.729A/B, G.711µ/a-law, G.726, G.722(wide-band), in-band andout-of-band DTMF(in audio, RFC2833, SIP INFO)
Auxillary Ports RJ9 headset jack (allowing EHS with Plantronics headsets), USB
Telephony Features Hold, transfer, forward, 4-way conference, call park, call pickup, sharedcall-appearance(SCA)/bridged-line-appearance(BLA), downloadablephonebook(XML, LDAP, up to 2000 items), call waiting, call log(up to 500records), XML customization of screen, off-hook auto dial, auto answer,click-to-dial, flexible dial plan, hot desking, personalized music ringtones andmusic 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 basedauthentication, 256-bit AES encrypted configuration file, SRTP, TLS, 802.1xmedia 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-069or 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 ; Packageweight:1.12kg
Temperature and Humidity Operation: 0°C to 40°CStorage: -10°C to 60°CHumidity: 10% to 90% Non-condensing
Package Content GXP2135 phone, handset with cord, base stand, universal power supply,network cable, Quick Installation Guide, GPL license
Compliance FCC: Part 15 (CFR 47) Class BCE: EN55022 Class B; EN55024 Class B;EN61000-3-2; EN61000-3-3;EN60950-1RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950.1


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