{"product_id":"yealink-exp50-busy-lamp-field-expansion-module","title":"Yealink EXP50 Busy Lamp Field Expansion Module - 4.3\" Color Display, 20 Dual-Color LED Keys, 60 Programmable Keys, Daisy-Chain Up to 3 (1300033)","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eYealink EXP50 Busy Lamp Field Expansion Module with 4.3-Inch Color Display, 20 Physical Keys with Dual-Color LED Indicators, Three-Page Navigation for 60 Programmable Keys, Daisy-Chain Support for Up to 3 Modules, and Plug-and-Play USB Connection for Yealink T5 Series SIP Phones and Teams Phones\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/collections\/yealink\"\u003eYealink\u003c\/a\u003e EXP50 is a busy lamp field expansion module that adds 20 physical keys with dual-color LED presence indicators and a 4.3-inch color display to compatible Yealink IP phones, giving receptionists, administrative assistants, and contact center operators at-a-glance visibility into colleague availability and one-touch access to speed dial, call transfer, call park, call pickup, and call forward functions. Three page-switching keys with illuminated LEDs expand the 20 physical keys to 60 programmable keys per module, and daisy-chaining up to three EXP50 modules to a single phone delivers 180 additional programmable keys for managing large contact directories and high call volumes.\u003c\/p\u003e\n\u003cp\u003eThe module connects to compatible Yealink phones through a plug-and-play USB 2.0 connection that requires no external power supply, and the included stand with two adjustable angles matches the viewing position of the host phone for a unified desk layout. When paired with Yealink Teams phones, the EXP50 displays up to 20 contacts per page with synchronized presence status through the dual-color LED indicators, providing real-time availability for speed dialing and call transfers. When connected to Yealink T5 series SIP phones, the multifunctional line keys support BLF, speed dial, call forward, transfer, call park, call pickup, and busy line answer (BLA) configurations. The compact 7.7 x 4.9 x 1.7-inch form factor and 1 lb weight keep desk space requirements minimal across multi-module installations.\u003c\/p\u003e\n\u003ch3\u003eWhere the Yealink EXP50 Busy Lamp Field Expansion Module Fits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceptionists and front desk operators managing high call volumes\u003c\/strong\u003e where 20 physical keys with dual-color LED presence indicators provide at-a-glance colleague availability, three-page navigation expands capacity to 60 programmable speed dial and BLF keys per module, and daisy-chaining up to three modules delivers 180 additional keys for large organizations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact center agents who need one-touch call transfer and pickup across departments\u003c\/strong\u003e where programmable keys support BLF, speed dial, call forward, transfer, call park, call pickup, and BLA functions, the 4.3-inch color display shows contact names and status, and plug-and-play USB connection adds functionality without IT configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrosoft Teams phone deployments needing physical BLF keys for presence monitoring\u003c\/strong\u003e where the EXP50 synchronizes Teams presence status through dual-color LED indicators, displays up to 20 contacts per page for speed dialing and call transfers, and the adjustable stand matches the host phone's viewing angle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat the Yealink EXP50 Busy Lamp Field Expansion Module Delivers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 Physical Keys with Dual-Color LED:\u003c\/strong\u003e 20 programmable keys per page. Dual-color LED presence indicators. 3 illuminated page-switching keys for 60 total programmable keys per module. Daisy-chain up to 3 modules for 180 keys per phone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.3-Inch Color Display:\u003c\/strong\u003e 4.3-inch color LED screen with backlight. Contact name and status display. Page navigation indicators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Key Functions:\u003c\/strong\u003e BLF (Busy Lamp Field). Speed dial. Call transfer. Call forward. Call park. Call pickup. Busy Line Answer (BLA).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play USB Connection:\u003c\/strong\u003e USB 2.0 connection. USB powered with no external adapter. Stand with 2 adjustable angles. 7.7 x 4.9 x 1.7 inches. 1 lb.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Yealink T5 series SIP phones. Yealink Teams phones. Microsoft Teams presence synchronization.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat Does BLF Stand for on a Phone?\u003c\/h3\u003e\n\u003cp\u003eBLF stands for Busy Lamp Field, a feature on IP phones that uses LED indicators to show the real-time status of other phone lines or extensions on the same system. When a colleague's line is idle, the BLF LED stays green; when they are on a call, it turns red, giving you instant visibility into who is available before transferring a call or attempting to reach them. The Yealink EXP50 expansion module adds 20 physical BLF keys with dual-color LED indicators to compatible Yealink phones, expanding the host phone's capacity to monitor extensions, speed dial contacts, and manage call transfers with a single key press rather than dialing extension numbers manually.\u003c\/p\u003e","brand":"Yealink Network Technology Co., Ltd","offers":[{"title":"Default Title","offer_id":52326648348856,"sku":"1300033","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/9110\/4952\/files\/1071455134_dfa5b296-fd1e-4158-8b93-5d088339dafe.jpg?v=1764187207","url":"https:\/\/islandelectricalsupply.com\/products\/yealink-exp50-busy-lamp-field-expansion-module","provider":"Island Electrical Supply","version":"1.0","type":"link"}