8.014,77 EGP
The Grandstream GBX20 is an executive color LCD extension module engineered to enhance call management on compatible GRP and GXV series IP phones. It features a 4.3-inch 272×480 TFT color display and 20 dual-color physical keys supporting 40 extensions across two screen pages. Up to four daisy-chained modules deliver high-density line monitoring for busy receptionists.
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Grandstream GBX Series GBX20 Color LCD Extension Module (Model: GBX20) is a Color IP Phone Extension Module engineered for busy receptionists, corporate switchboards, call center supervisors, and executive assistants. Featuring a 4.3-inch 272×480 TFT color display, 20 physical dual-color LED keys, and 2 page switch keys, it delivers 40 programmable extensions per unit and supports daisy-chaining up to 4 modules for 160 total contacts.
Compatible with Grandstream GXV3350, GRP2615, GRP2624, GRP2634, GRP2636, GRP2650, and GRP2670 phones, it provides dynamic BLF, speed dial, and call control. The module draws operating power directly from host phones (with external PSU support when cascading multiple units), maintaining a fanless acoustic profile.
| Component / Parameter | Technical Specification |
|---|---|
| Product Line | GBX Series |
| Model / SKU | GBX20 |
| Capacity / Scale | 20 Physical Keys per Module; 40 Extensions across 2 Screen Pages; Daisy-chain up to 4 Modules (160 Lines) |
| Network / Telephony Interfaces | 1x USB Type-A (Host Phone Connection), 1x USB Type-B (Daisy-Chain Interconnection) |
| Packet / Voice Processing | Hardware-driven BLF, Speed Dial, Call Park, Pick-up, Presence, Intercom, Transfer |
| Expansion & Peripheral Ports | USB Cascading Interface for linking up to 4 GBX20 units |
| Operating System / Management | Managed via Host Phone UI and Grandstream GDMS Cloud Platform |
| Power Supply Specifications | Powered directly by Host Phone (12VDC 1A external power adapter required for 2 or more cascaded units) |
| Maximum Power Consumption | 3.5W |
| Parameter / Feature | Specification / Rating |
|---|---|
| Physical Dimensions (L × W × H) | 210 × 124 × 33.5 mm |
| Unit Weight | 360 g (0.36 kg) |
| Chassis & Display | 4.3 inch (272 × 480) TFT color LCD; 20 dual-color illuminated keys, 2 page keys |
| Heat Dissipation / Cooling | Fanless natural heat dissipation (noise-free operation) |
| Operating Temperature Range | 0°C to 40°C (32°F to 104°F) |
| Operating Relative Humidity | 10% to 90% (Non-condensing) |
| Mounting Capabilities | Desktop phone-docking bracket and Wall-mount |
The Grandstream GBX Series GBX20 Color LCD Extension Module is designed for enterprise and commercial deployment scenarios, including:
The Grandstream GBX Series GBX20 Color LCD Extension Module features a Desktop phone-docking bracket and Wall-mount enclosure measuring 210 × 124 × 33.5 mm and weighing 360 g (0.36 kg). It operates across an environmental temperature range of 0°C to 40°C (32°F to 104°F) and relative humidity of 10% to 90% (Non-condensing). Powered via Powered directly by Host Phone (12VDC 1A external power adapter required for 2 or more cascaded units), it ensures dependable continuous operation and structured integration into commercial networking racks and office work environments.
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