# Caller ID Display Grandstream Networks GBX20

**URL:** https://aio.lv/en/product--grandstream-gbx20--3148907
**Data updated:** 2025-12-07 10:43 (EET)
**Category:** VoIP Phones
**Manufacturer:** Grandstream
**Manufacturer code:** GBX20
**EAN:** 6947273702931
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 126.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 104.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--grandstream-gbx20--3148907

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Grandstream Networks GBX20 is a grey caller ID display with dimensions of 33.5 mm depth, 124 mm width, and 210 mm height. It provides clear visibility of incoming calls, enhancing communication efficiency. Its sleek design complements any office setup, making it a practical addition for businesses. The GBX20 is easy to install and use, ensuring that you never miss an important call.

## Long description

The GBX20 is a backlit LCD extension module compatible with Grandstream GXV3350 and GRP2615 IP phones. It provides 20 dual-colored programmable extension keys plus 2 arrow keys for paging, allowing each GBX20 to manage up to 40 contacts or extensions. Up to four GBX20 modules can be connected to a supported phone for a combined total of 160 contacts or extensions.
Advantages
The GBX20 offers clear backlit display and dual-colored keys for easy status recognition, compactly expanding a phone’s line and contact capacity. Page-switching arrow keys enable quick navigation between sets of contacts, and the module's compatibility with GXV3350 and GRP2615 ensures straightforward integration into existing Grandstream setups.
Key specifications
Compatibility: Grandstream GXV3350, GRP2615
Physical keys: 20 dual-colored programmable extension keys
Navigation: 2 arrow keys for page switching
Per-module capacity: up to 40 contacts/extensions (with paging)
Max modules per phone: 4 (up to 160 contacts/extensions total)
How to use
Attach the GBX20 to a compatible Grandstream phone following the phone’s accessory connection instructions. Program the extension keys via the phone’s configuration interface or web GUI to assign contacts, speed dials, or line appearances. Use the arrow keys to switch pages and access the second set of 20 programmable keys, enabling up to 40 entries per module.
Recommendations
For larger deployments, connect up to four GBX20 modules to a single GXV3350 or GRP2615 to expand to 160 contacts. Ensure firmware on the phone is up to date for full compatibility and consult Grandstream documentation for setup details.

## Specifications

### Phone features

| Feature | Value |
|---|---|
| Phonebook capacity | 40 entries |
| Caller ID | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.36 kg |
| Package weight | 700 g |
| Height | 210 mm |
| Width | 124 mm |
| Depth | 33.5 mm |

### Design

| Feature | Value |
|---|---|
| Wall mountable | No |
| Product colour | Grey |

## FAQ

### How much does the Caller ID Display Grandstream Networks GBX20 cost, and is it available for purchase?

The price is 126.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 72 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Caller ID Display Grandstream Networks GBX20 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Grandstream products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Grandstream service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Caller ID Display Grandstream Networks GBX20?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3148907/65784861_large.webp