{"product_id":"grandstream-gbx20-extension-module-40-keys-4-3-lcd-blf-expandable","title":"Grandstream GBX20 Extension Module | 40 Keys, 4.3\" LCD, BLF \u0026 Expandable","description":"\u003ch4\u003e\u003cspan\u003eGrandstream GBX20: Transform Your Phone into a Powerful Call Management Console\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGrandstream GBX20 Extension Module\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a purpose-built attendant console that turns your compatible Grandstream IP phone into a comprehensive call management station. Designed for busy receptionists, executive assistants, call centre supervisors, and power users who need instant access to dozens of extensions, the GBX20 eliminates the need to scroll through menus or remember complex feature codes.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eMassive Expansion with Flexible Daisy‑Chaining\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe GBX20 allows you to expand your call control significantly. Each module provides 20 physical, dual‑colored programmable keys. Two page keys allow you to switch between two virtual pages, giving each module an effective capacity of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40 contacts\/extensions\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. For even greater capacity, you can connect up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4 GBX20 modules\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e in a daisy‑chain configuration to a single compatible phone, resulting in a total of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e160 programmable keys\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e on your desktop. The colour‑coded dual‑colored LEDs instantly communicate the status of each monitored extension (e.g., idle, ringing, busy), allowing you to see at a glance which colleagues are available to take a call.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eCrystal‑Clear Colour LCD for Easy Monitoring\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe GBX20 is equipped with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.3‑inch (272×480) TFT colour LCD\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – large enough to clearly see the status of all 40 assignments per module. The local GUI is driven directly from the host phone and features smooth animations, making it intuitive to navigate, configure, and monitor line‑by‑line statuses.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eAdvanced Call Features at Your Fingertips\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eEvery programmable key on the GBX20 supports a comprehensive suite of advanced telephony features, enabling you to handle high‑volume call traffic professionally and efficiently. Supported functions include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eBLF (Busy Lamp Field) and Presence\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Monitor the real‑time status of other extensions (idle, ringing, busy) directly from the module, and see if a colleague is available before transferring a call.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eCall Pick‑Up \/ Call Park\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Answer a call ringing on another extension with a single button press, or park an active call on a specific extension for retrieval from another phone.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eSpeed‑Dial\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Configure frequently called numbers to dedicated buttons for instant dialling.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eIntercom and Voice Conferencing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Initiate direct intercom pages or set up voice conferences without navigating complex menus.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eTransfer and Forward\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Blind or attended transfer of active calls, along with advanced call forwarding options.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan\u003eSimple Installation and Centralised Configuration\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe GBX20 is designed for simple, tool‑assisted physical installation. A secure metal connector plate bridges the phone and the extension module, and a USB cable provides the data and power connection (for a single module). When two or more modules are attached, the included 12V\/1A power adapter ensures stable power delivery to all units. Configuration of the extension keys is handled centrally through the host phone's web GUI, meaning changes can be made quickly and consistently across multiple modules.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eWhich Grandstream Phones Work with the GBX20?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe GBX20 is compatible with a growing list of Grandstream phones. Confirm your existing phone supports the module before purchasing. The following models are confirmed to be compatible: GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, and GXV3450.\u003c\/span\u003e\u003c\/p\u003e","brand":"Grandstream","offers":[{"title":"Default Title","offer_id":51568172138784,"sku":"GBX20 EXT","price":41000.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/7000\/8864\/files\/2_2aa49bf6-2665-4612-a900-4a801572b901.png?v=1777995324","url":"https:\/\/hdmi.com.pk\/products\/grandstream-gbx20-extension-module-40-keys-4-3-lcd-blf-expandable","provider":"UGREEN PAKISTAN","version":"1.0","type":"link"}