SKU: 79497758592

Grandstream Expansion Module for GRP2615,GRP2624,GRP2650,GRP2670,GXV3350,GXV3450

Sale price$1174.93 Regular price$1305.48
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Grandstream Expansion Module for GRP2615,GRP2624,GRP2650,GRP2670,GXV3350,GXV3450Supercharge Your Communication Hub Unlock the full potential of your Grandstream IP phone with the GBX20 Expansion Module, the ultimate solution for managing high call volumes with unparalleled efficiency. Designed for receptionists, executives, and busy professionals, this module transforms your desk phone into a powerful command center. Featuring a vibrant 4. 3 inch color LCD display, the GBX20 provides a clear, intuitive interface for all your

Supercharge Your Communication Hub

Unlock the full potential of your Grandstream IP phone with the GBX20 Expansion Module, the ultimate solution for managing high call volumes with unparalleled efficiency. Designed for receptionists, executives, and busy professionals, this module transforms your desk phone into a powerful command center. Featuring a vibrant 4.3-inch color LCD display, the GBX20 provides a clear, intuitive interface for all your communication needs.

Expand Your Reach

Effortlessly handle more calls and contacts. The GBX20 adds 20 dual-colored programmable extension keys per page, and with two pages available, you get 40 additional lines per module. For businesses with growing demands, you can daisy-chain up to four modules to access a staggering 160 new contacts and extensions. This scalability ensures that your phone system grows with your business.

Advanced Call Handling at Your Fingertips

The GBX20 supports a wide array of advanced call features to streamline your workflow. Instantly see who is available with Busy Lamp Field (BLF), manage calls with call park/pickup, and connect faster with speed dial. Additional features like presence, intercom, and conference transfer/forward put you in complete control of your communications, ensuring maximum productivity.

Seamless Integration

The GBX20 is designed for plug-and-play simplicity and is compatible with a range of Grandstream's Carrier-Grade IP Phones and IP Video Phones, including the GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, and GXV3450 models. A single module can be powered directly by the host phone; for two or more modules, a dedicated power supply is included to ensure reliable performance.

Technical Specifications
Display 4.3 inch (272x480) TFT color LCD
Programmable Keys 20 per page with 2 pages for up to 40 lines/contacts per module
Maximum Scalability Up to 160 contacts/extensions by connecting 4 daisy-chained modules
Compatible Grandstream Phones GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, GXV3450
Supported Features BLF, call park/pick-up, speed-dial, presence, intercom, voice conferencing, transfer/forward and more
Power A single GBX20 can be powered by the host phone. When 2 or more are connected, an included 12V/1A PSU is required.
Firmware Upgrades Upgraded via direct network download through the host phone's network connection.
Physical Dimensions 210mm x 124mm x 33.5mm
Weight Unit: 360g, Package: 700g
Package Contents GBX20 Extension Module, Base Stand, Extension Board Connector Plate, Screws, USB Cable
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79497758592

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Danielle Leahy
Battle Creek, US
★★★★★ 5
Classic and expensive looking
Color: Vintage Green, Color: Vintage Green
Love this addition to our bust collection! The dark green really looks like old metal. A bit on the small size but true to specs. This is still a great looking bust but it's just not very large. I suggest 14-16 inches or over if you want something more substantial.
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Reviewed in the United States on October 27, 2023
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Hatice Karaca
Massapequa, US
★★★★★ 5
Dermatologist recommended it!
Size: 1.3 Ounce (Pack of 1)
This is my 11th order of this product. I originally started using it a few years ago when my dermatologist recommended it during a period of hormonal acne. I’ve been using it ever since. I have very sensitive skin that usually reacts to almost everything, either with redness or breakouts, but I can use this cream comfortably without any issues. It is very gentle, deeply hydrating, and has become a permanent part of my skincare routine. It is definitely worth the price. Even a small amount provides excellent hydration and it lasts a long time. I also love that it has a natural ingredients and is fragrance-free.
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Reviewed in the United States on April 14, 2026
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Jill
Louisville, US
★★★★★ 5
Game changer.
Size: 1.3 Ounce (Pack of 1)
I moved out to Arizona back in 2020 and shortly after that, I became a reptile. My skin would become flaky and peel and I tried several different types of facial creams and lotions with no luck. I went to a dermatologist who recommended CeraVe, and it did help my skin to an extent. It took care of the flakiness, but I would still see the dryness, especially when I looked in the mirror up close. I recently was on Google doing a search and came across this brand. I thought I’d give them a try and though I was skeptical, my skin has not looked this good in years. My skin feels smooth, hydrated and NO greasiness. I highly recommend this product.
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Reviewed in the United States on September 1, 2025
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Kelly
Houston, US
★★★★★ 5
Wonderfully effective and slightly bougie
Size: 1.3 Ounce (Pack of 1)
I have dry not so sensitive skin. I love the way this smells and feels on my tired parched face.
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Reviewed in the United States on October 25, 2025
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Amazon Customer
Whiting, US
★★★★★ 5
Cleared up my flaky skin problem, helps keeps my facial skin soft year round
Size: 1.3 Ounce (Pack of 1)
I bought this full-size tube of Avene Hydrance Optimale Rich Hydrating Cream after falling in love with a small sample tube that came in a subscription box. At the time I received the sample, I was battling an unusual case of dry flaky skin that was embarrassing. Within a few days of regular use, my skin looked like new. Soft and clear. The tiny sample lasted a long time, so I didn't hesitate to buy the full-size tube even at this price. I use this every morning and night after cleansing my face. My skin stays soft, even with the dry winter skin and drying indoor heat. My makeup glides on smoothly. This is my go-to moisturizer year round now. Another reviewer mentioned being concerned her product may be counterfeit. I only buy products like this when it says Sold by Amazon and not a third party so I make sure I get authentic, fresh products every time.
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Reviewed in the United States on February 26, 2018

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