Grandstream GBX20Extension module with 4.3-inch colour display
Adds forty named busy-lamp-field and speed-dial keys per module to the GRP2615, with up to four modules for 160 keys.
- 40 keys per module
- Up to 4 modules · 160 keys
- 4.3" colour LCD
- For the GRP2615
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Grandstream GBX20 at a glance.
Transcribed from the manufacturer’s datasheet. Ask us if a detail matters to your deployment and we will confirm it against the current hardware revision.
- Keys
- 20 keys per page, 2 pages per module: up to 40 contacts per module
- Modules
- Up to 4 daisy-chained modules, 160 contacts in total
- Compatibility
- Grandstream GRP2615 and GRP2624 desk phones and the GXV3350 video phone
- Display
- 4.3-inch 272×480 TFT colour LCD
- Features
- BLF, call park and pick-up, speed dial, presence, intercom, conferencing, transfer and forward
- Power
- One module is powered by the host phone; two or more modules use the included 12 V 1 A adapter
- Size and weight
- 210 × 124 × 33.5 mm, 360 g
The GBX20, in plain English.
The GBX20 turns a GRP2615 into a switchboard. Each module shows forty contacts across two pages on a 4.3-inch colour display, with busy-lamp fields that show whether an extension is free, on a call or ringing, and keys for call park, pick-up, speed dial, presence, intercom and transfer.
Up to four modules daisy-chain for 160 keys, which covers a large office, a hospital department or a school. One module is powered by the phone; two or more use the 12 V adapter in the box.
Telexico supplies the GBX20 with the GRP2615 for reception and operator positions, and configures the key layout on screen in the Telexico portal so new starters appear on the console the same day. Call for best price.
Highlights
- Forty labelled keys per module on a colour screen, no paper labels
- Up to four modules for a 160-key switchboard
- Busy-lamp fields, call park and pick-up, speed dial and presence
- Key layouts built on screen in the Telexico portal
Best for
- Reception and operators
- Switchboards
- Hospital and school front desks
- Practice managers
Builds, bundles and what is in the box.
Prices exclude VAT. On a 12-month Telexico term the handsets are included; on rolling 30-day terms or an outright purchase the prices below apply. Volume pricing on 10+ handsets.
| Option | Telexico price | |
|---|---|---|
| GBX20 | Call for best price | Quote |
In the box
Extension module, base stand, connector plate, screws, USB cable, 12 V power adapter and quick installation guide.
On the Telexico cloud phone system
Every GBX20 we supply registers to the Telexico cloud phone system: call recording included on every seat, the Telexico Mobile App and Telexico Web UC alongside the handset, one directory, one voicemail, one bill with your broadband. See the fully loaded seat →
Get the Grandstream GBX20 on a Telexico system.
Send the desk count and we come back with the price for this model, the alternatives worth considering and the seat cost it sits on. No obligation, UK engineers, one supplier for phones and broadband.
- Prices on this page are ex VAT; volume pricing on 10+ handsets
- Handsets arrive provisioned for their extension, keys and groups
- On a 12-month Telexico term, handsets are included
- Existing Grandstream and Yealink phones can usually be re-provisioned free
Models often considered alongside the GBX20.
GRP2615
10-line premium IP phone
£158.40ex VAT
GRP2670
12-line professional IP phone with 7-inch touch screen
£166.80ex VAT
GUV3050
HD Bluetooth headset with USB dongle
£59.99ex VAT
Grandstream GBX20: your questions.
Which phones take the GBX20?
The Grandstream GRP2615 and GRP2624 desk phones and the GXV3350 video phone. The GRP2670 also supports a Grandstream extension module; ask us to confirm the right module for a GRP2670 console.
How many keys can I have?
Forty per module and up to four modules on one phone, so 160 keys plus the forty built into the GRP2615.
Does it need its own power?
A single GBX20 is powered by the phone. Two or more modules are powered by the included 12 V adapter.