{"product_id":"yealink-sip-t73u-ultra-business-ip-phone-12-sip-lines-2-8-color-display-gigabit-poe-1301012-new","title":"Yealink SIP-T73U Ultra Business IP Phone 12 SIP Lines 2.8\" Color Display Gigabit PoE (1301012) - New","description":"\u003ch3\u003eYealink SIP-T73U Ultra Business IP Phone\u003c\/h3\u003e\n\u003cp\u003eThe standard desk phone in Yealink's current T7 series, the SIP-T73U is the wired workhorse the T43U generation grew into — 12 SIP accounts behind a compact 2.8-inch color screen, built for the everyday desks that make up most of an office. It is the T73W's wired sibling: no built-in radios, just dual Gigabit Ethernet and PoE, with wireless available later through USB dongles if a desk ever needs it.\u003c\/p\u003e\n\u003cp\u003eEight line keys page out to 40 programmable DSS keys for busy-lamp fields, park slots, and one-touch dials, and the phone cascades up to three EXP55 color expansion modules when a standard desk grows into a light reception position. Audio carries the full T7 treatment: HD handset and speaker, Acoustic Shield, Smart Noise Filtering, and a 3W speaker, with a hearing-aid-compatible handset that uses a Hall switch for a quieter cradle. Under the hood, Linux 6.1 with TEE hardware encryption, secure boot, and unified T7X firmware keeps fleet provisioning and updates simple and consistent with the rest of the series.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e Yealink SIP-T73U (1301012)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 2.8\" 320 x 240 color LCD with backlight; wallpaper, screen saver, dark and light themes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSIP Accounts:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine\/DSS Keys:\u003c\/strong\u003e 8 line keys with LED, up to 40 programmable DSS keys across 5 pages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEthernet:\u003c\/strong\u003e Dual-port Gigabit Ethernet with PoE (IEEE 802.3af); power adapter sold separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB:\u003c\/strong\u003e 1x USB 2.0 (USB headset, call recording, EXP55 expansion modules — up to 3 cascaded; Wi-Fi via WF50 and Bluetooth via BT41\/BT51 dongles; EHS40 wireless headset adapter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio:\u003c\/strong\u003e HD voice (HD handset, HD speaker, 3W), Acoustic Shield, Smart Noise Filtering, full-duplex speakerphone with AEC; wideband G.722 \/ AMR-WB (optional), narrowband G.711, G.723.1, G.729 family, G.726, iLBC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConferencing:\u003c\/strong\u003e 5-way local conference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirectory:\u003c\/strong\u003e Local phonebook up to 1,000 entries; XML\/LDAP remote phonebook\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity\/Platform:\u003c\/strong\u003e Linux 6.1 with TEE hardware encryption, secure boot, TLS 1.3, SRTP, AES 256 configuration encryption, 802.1X; Hall-switch handset; stand with 2 adjustable angles; wall mountable (bracket optional)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e SIP-T73U phone, handset with handset cord, Ethernet cable (2m CAT5E), stand, and quick start guide. Power adapter is NOT included — the T73U runs on PoE from a PoE switch port, or on a Yealink 5V\/2A adapter sold separately.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy From Reef Telecom?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand-new, genuine Yealink\u003c\/li\u003e\n\u003cli\u003e10-year warranty on every unit\u003c\/li\u003e\n\u003cli\u003eFree shipping on orders over $300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yealink","offers":[{"title":"Default Title","offer_id":67478405185777,"sku":"YEALINK-T73U","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/5337\/1121\/files\/yealink-sip-t73u-ultra-business-ip-phone-12-lines-2-8-color-display-759.webp?v=1794236531","url":"https:\/\/www.reeftel.com\/products\/yealink-sip-t73u-ultra-business-ip-phone-12-sip-lines-2-8-color-display-gigabit-poe-1301012-new","provider":"Reef Telecom","version":"1.0","type":"link"}