Grandstream Expansion Module for GRP2615,GRP2624,GRP2650,GRP2670,GXV3350,GXV3450
SKU: 79497758592

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

Sale price$1174.93 Regular price$1305.48
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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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4.0 ★★★★★
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Verified Purchase
k25
Omaha, US
★★★★★ 5
It's the perfect pillow!
Size: Queen (Pack of 1), Color: White
I purchased this pillow specifically for its customizable fill feature, which allows you to add or remove stuffing to suit your personal comfort needs. Due to the unique curvature of my cervical spine—forward at the neck rather than backward—I require a soft, semi-flat pillow rather than one that is thick or firm. Additionally, I often experience ear discomfort by morning, so a gentler surface is essential. Upon adjusting the fill, I was pleasantly surprised by the generous amount of stuffing included. There was enough to fill an additional pillowcase, and I estimate it could easily create four to five more pillows. The ability to modify the pillow’s firmness at any time is an outstanding feature that makes it adaptable for a wide range of preferences and sleep styles. This pillow has exceeded my expectations in both comfort and versatility. I highly recommend it to anyone seeking a personalized sleep experience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
N
Verified Purchase
NC Coach
Boise, US
★★★★★ 4
Good quality pillows overall
Size: King (Pack of 2), Color: White
Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed. First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification. Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material. Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
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Reviewed in the United States on December 19, 2025
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Perfect Pillow
Size: Queen (Pack of 1), Color: White
These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
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Reviewed in the United States on May 17, 2026
M
Verified Purchase
Mark
Pawtucket, US
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow. I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine. Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow. Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money. UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
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Reviewed in the United States on January 29, 2026
D
Verified Purchase
Danica Mandic
Dallas, US
★★★★★ 5
Soft comfortable very good pillow
Size: King (Pack of 1), Color: White
I really love my new pillow it's great and comfortable. Yes, it has a little smell, but if you wash the pillowcase and put the pillow on the window for a day you won't notice anything anymore.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

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