At a glance
- Display
- 4.3 inch colour LCD, 480 x 272
- Programmable Keys
- 20 dual-colour keys per page, 2 pages
- Max Modules
- 4 daisy-chained (160 contacts)
- Compatible Phones
- GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, GXV3450
- Power
- From host phone for one module
- Dimensions
- 210 x 124 x 33.5 mm
In the box
- GBX20 expansion module
- Base stand
- Connector plate
- Screws
- USB cable
- Quick installation guide
Grandstream GBX20 Expansion Module, 4.3 Inch Colour LCD, 40 Keys
₹24,015 Incl. GST
₹20,352 + 18% GST
At a glance
- Display
- 4.3 inch colour LCD, 480 x 272
- Programmable Keys
- 20 dual-colour keys per page, 2 pages
- Max Modules
- 4 daisy-chained (160 contacts)
- Compatible Phones
- GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, GXV3450
- Power
- From host phone for one module
- Dimensions
- 210 x 124 x 33.5 mm
Turns a desk phone into a reception console, so a receptionist or assistant can watch and transfer calls to many colleagues. 4.3 inch colour screen, 40 contacts per module, up to 4 modules on GRP2615, GRP2624, GRP2650 and GRP2670 phones.
- WarrantyManufacturer warranty under Grandstream's terms. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
The Grandstream GBX20 is a colour-screen key module that sits beside a compatible Grandstream desk phone and turns it into a reception or operator console. Its 4.3 inch screen labels 20 keys, each of which can show whether a colleague is busy and transfer a caller to them with one press, so a receptionist or assistant can watch and route calls for many people. Two pages give 40 contacts per module, and up to four modules chain on one phone.
Is it right for you?
- Suits a receptionist, operator or assistant on a GRP2615, GRP2624, GRP2650 or GRP2670 desk phone, or a GXV3350 or GXV3450 video phone.
- One module gives 40 contacts over two pages; chain up to four for 160 contacts.
- It is not supported on other GRP models such as the GRP2614, GRP2616, GRP2634 or GRP2636.
- For a GXP2140 or GXP2170 phone, the GXP2200 EXT is the matching module instead.
Key features
- 4.3 inch colour LCD, 480 x 272, so key labels are on screen with no paper labels to update.
- 20 dual-colour keys per page, two pages, 40 contacts per module.
- Up to four modules daisy-chained for 160 contacts.
- Busy lamp field (BLF), shared and bridged line appearance, call park and pickup, speed dial, presence, intercom, transfer and conference on any key.
- Connects to the phone with a USB cable; firmware is upgraded through the host phone’s network connection.
- 210 x 124 x 33.5 mm, 360 g per module.
What else you need
- A compatible host phone: GRP2615, GRP2624, GRP2650, GRP2670, GXV3350 or GXV3450. The module does nothing on its own.
- One module is powered by the host phone. Only if you chain two or more modules, you also need a 12 V power supply.
Installation
Anyone comfortable setting up a desk phone can fit it. The supplied connector plate, screws and USB cable join the module to the phone; follow the quick installation guide for the order of assembly and use the base stand so the module sits level with the phone. Do not power cycle the module during boot-up or a firmware upgrade. Operating range 0 to 40 °C.
Software and licences
Firmware is upgraded through the host phone, so there is nothing separate to install or license.
Before you buy
- It needs one of the host phones listed; it is not supported on the GRP2614, GRP2616, GRP2634 or GRP2636.
- Two or more chained modules need a 12 V power supply.
Technical specifications
Key facts
- What is it?
- Phone Expansion Modules & AccessoriesBrand Grandstream, model GBX20
- How is it powered?
- From host phone for one module
- What comes in the box?
- GBX20 expansion module; Base stand; Connector plate; Screws and 2 more
- Which documents are available?
- Datasheet, quick start guide, certificate, firmware Open documents
- Display
- 4.3 inch colour LCD, 480 x 272
- Programmable Keys
- 20 dual-colour keys per page, 2 pages (40 contacts per module)
- Max Modules
- 4 daisy-chained (160 contacts)
- Compatible Phones
- GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, GXV3450
- Connection
- USB cable to host phone
- Power
- From host phone for one module; 12 V power supply needed for 2 or more modules
- Firmware Upgrade
- Through the host phone
- Dimensions
- 210 x 124 x 33.5 mm
- Weight
- 360 g
- Operating Temperature
- 0 to 40 °C
- Warranty
- Manufacturer warranty under Grandstream's terms. How claims work
Product attributes and shipping details
| Brand | Grandstream |
|---|---|
| Mounting | Attaches to host phone |
| Connectivity | USB |
Downloads
Documentation
- GBX20 DatasheetDatasheet · This model · 508.9 KBDownload
Certificate and compliance document (1)
- Grandstream GBX20 EU declaration of conformityCertificate · This model · 164.3 KBDownload
Installation guide
- GBX20 Quick Installation GuideQuick start guide · This model · 33.4 MBDownload
Firmware
- Grandstream firmware: GBX20Version 1.0.1.12 · n/a (device firmware)Prerequisites: Read release notes and warnings in the row (downgrade limits, backups); Firmware update only from this exact model row; read release notes firstLicence: FreeFirmware · Family · grandstream.comView official download page
Series documents can differ from your exact model. Report a wrong or missing file
Works with this product
Works with
- Grandstream GRP2615 IP Phone, 10 Lines, 16 SIP, 4.3 Inch Colour, Wi-FiGRP2615
Why GBX20 needs a host phone; the GRP2615 is compatible.
- Grandstream GRP2624 IP Phone, 8 Lines, 12 SIP, Wi-Fi 6, BluetoothGRP2624
Why GBX20 needs a host phone; the GRP2624 is compatible.
- Grandstream GRP2650 IP Phone, 14 Lines, 16 SIP, 5 Inch Colour, Wi-Fi 6GRP2650
Why GBX20 needs a host phone; the GRP2650 is compatible.
- Grandstream GRP2670 Touch Screen IP Phone, 12 Lines, 16 SIP, 7 InchGRP2670
Why GBX20 needs a host phone; the GRP2670 is compatible.
- Grandstream GXV3450 Android Video IP Phone, 5 in Touch Screen, 16 LinesGXV3450
Why GBX20 needs a host phone; the GXV3450 is compatible.
Questions about this product
Which phones does the GBX20 work with?
The GRP2615, GRP2624, GRP2650 and GRP2670 desk phones and the GXV3350 and GXV3450 video phones.
How many GBX20 modules can I connect?
Up to four, daisy-chained, for 160 contacts. One module is powered by the phone; two or more need a 12 V power supply.
Does the GBX20 work with the GRP2616 or GRP2636?
No. The GRP2616, GRP2634 and GRP2636 have no expansion module support.
How many keys does it have?
20 physical keys. Two page keys switch between two pages, giving 40 contacts per module.
What is in the box?
The module, a base stand, a connector plate, screws, a USB cable and a quick installation guide.
Ask about this modelSetup, compatibility, what is in the box
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