Grandstream GXP2135 Colour IP Phone, 8 Lines, 32 BLF Keys, Bluetooth, PoE

Overview

The Grandstream GXP2135 is a desk phone for people who watch many extensions at once: receptionists in small offices, team supervisors and dispatch desks. It has eight line keys across four SIP accounts, 32 busy lamp field (BLF) keys that show who is on a call, a 2.8 inch colour screen and Bluetooth for a headset. It is powered over the network cable (Power over Ethernet, PoE) or by the adapter in the box.

Is it right for you?

• Suits busy users who handle medium to heavy call volumes and need to see the status of many colleagues: receptionists, supervisors and dispatch desks.
• If 8 BLF keys are enough, the GXP2130 is the three-line model with the same screen and physical BLF keys.
• If you need 12 lines, 48 on-screen BLF keys and GXP2200EXT expansion modules, see the GXP2170.
• The 32 BLF keys are digitally programmable, so their labels are set from the phone rather than written on paper.
• It needs a SIP phone system (IP PBX) or hosted VoIP service to register to.

Key features

• 8 line keys with 4 Session Initiation Protocol (SIP) accounts.
• 32 digitally programmable BLF and speed-dial keys.
• 2.8 inch (320 x 240) colour TFT LCD and 4 XML soft keys.
• Dual switched Gigabit Ethernet ports (10/100/1000 Mbps) with integrated PoE (802.3af), so one cable serves the phone and the PC beside it.
• Built-in Bluetooth for headsets, and for syncing contacts and transferring calls with a mobile phone.
• RJ9 headset jack with electronic hook switch (EHS) support for Plantronics headsets.
• 4-way audio conferencing and a phonebook of up to 2,000 entries.
• HD (high-definition) audio on handset and speakerphone. Codecs G.729A/B, G.711µ/a, G.726, G.722, G.723.1, iLBC and Opus.

What else you need

• A Session Initiation Protocol (SIP) call server to register to: a Grandstream UCM (Unified Communications Manager) IP PBX, which can also set the phone up with zero configuration, or a hosted internet calling (VoIP) service.
• A network cable to the desk.
• Power from an 802.3af PoE switch port or injector, or from the universal power adapter in the box (100 to 240 V AC input, 12 V DC 0.5 A output) and a mains socket. Maximum draw is 6.4 W on the adapter or 6.49 W on PoE.
• For the BLF keys to show status: a call server that publishes extension status, such as a Grandstream UCM.
• Only if you want it on the wall: the Grandstream wall mount, which is sold separately.

Installation

Use the two-angle base stand, or wall mount the phone with the separately sold wall mount. One network cable can serve the phone and a PC through the second Gigabit port. A telephony installer or IT team registers it to the call server and programs the 32 BLF keys, or a Grandstream UCM can provision it automatically.

Software and licences

Works with standard SIP platforms and Grandstream UCM IP PBXs. Provisioning options include TR-069, AES-encrypted XML files and the Grandstream Device Management System (GDMS), so a batch of phones can be configured without touching each one.

Before you buy

• A universal power adapter (12 V DC 0.5 A) is in the box, and the phone accepts 802.3af PoE.
• The wall mount is sold separately and is not part of the box.
• Size 201 x 193 x 85 mm, weight 0.85 kg. Operating temperature 0 to 40 °C.