{"product_id":"ip-phone-yealink-sip-t43u-gigabit-12-sip-accounts-2-usb-3-7-inch-lcd-poe","title":"IP phone Yealink SIP-T43U Gigabit, 12 SIP accounts, 2× USB, 3.7-inch LCD, PoE","description":"\u003cdiv style=\"font-size:1.1em;\"\u003e\n\u003ch2\u003eYealink SIP-T43U\u003c\/h2\u003e\n\u003cdiv class=\"context-badges\"\u003e \u003cspan\u003eFor multiple SIP accounts\u003c\/span\u003e \u003cspan\u003eFor a network with PoE\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e An IP phone for business users and teams managing multiple VoIP accounts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e Support for 12 SIP accounts makes it easy to manage multiple phone accounts.\u003c\/li\u003e\n\u003cli\u003e Power over PoE allows you to use a network cable for power if your network supports it.\u003c\/li\u003e\n\u003cli\u003e The 3.7-inch display provides an overview of call information.\u003c\/li\u003e\n\u003cli\u003e A Gigabit connection provides network connectivity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eYealink SIP-T43U Business Gigabit IP Phone – Powerful tool with dual USB ports and 12 SIP accounts\u003c\/h2\u003e\n\u003cp\u003e \u003cstrong\u003eThe Yealink SIP-T43U\u003c\/strong\u003e Business IP Phone (SKU: \u003cstrong\u003eSIP-T43U\u003c\/strong\u003e , EAN: \u003cstrong\u003e6938818306389\u003c\/strong\u003e ) is a highly reliable and flexible communication solution for modern office environments. As part of the advanced T4U series, the device features an elegant design, high responsiveness, and the integration of two USB ports, allowing users to simultaneously use wireless Bluetooth or Wi-Fi adapters, USB headsets, or locally record calls to a USB drive.\u003c\/p\u003e\n\u003cp\u003e The phone is equipped with a clear \u003cstrong\u003e3.7-inch backlit graphic LCD display\u003c\/strong\u003e (360 × 160 pixels) and supports up to \u003cstrong\u003e12 SIP accounts\u003c\/strong\u003e and up to 21 programmable DSS keys for quick access to features. \u003cstrong\u003eYealink Optima HD Voice\u003c\/strong\u003e technology combined with the wideband Opus codec and smart noise filtering enables crystal clear sound without interference. With built-in \u003cstrong\u003eGigabit network ports (10\/100\/1000 Mbps)\u003c\/strong\u003e and support for Power over Ethernet ( \u003cstrong\u003ePoE\u003c\/strong\u003e ), setting up the phone at the workplace is quick and easy.\u003c\/p\u003e\n\u003ch3\u003e Main advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e \u003cstrong\u003eDual USB Ports:\u003c\/strong\u003e Enable flexible expandability by connecting USB headphones, Wi-Fi\/Bluetooth adapters, or USB storage for recording.\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eSuperior Optima HD audio performance:\u003c\/strong\u003e Support for the Opus wideband codec and noise cancellation technology for natural sound.\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eDual-port Gigabit Switch:\u003c\/strong\u003e Fast data streaming via two RJ45 10\/100\/1000 Mbps Ethernet ports with PoE support.\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003e3.7\" LCD screen with backlight:\u003c\/strong\u003e Clear display of call information, phonebook and 21 programmable DSS keys on 3 pages.\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eExpansion module support:\u003c\/strong\u003e Compatible with Yealink EXP43 color expansion modules for more demanding workplaces and secretaries.\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eAdjustable stand:\u003c\/strong\u003e Adjustable desktop stand with two tilt angles and wall mounting option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Technical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e \u003cstrong\u003eManufacturer \/ Brand:\u003c\/strong\u003e Yealink\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eModel \/ Designation:\u003c\/strong\u003e SIP-T43U (T4U Series)\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eProduct code \/ SKU:\u003c\/strong\u003e SIP-T43U\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eEAN code:\u003c\/strong\u003e 6938818306389\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eDevice type:\u003c\/strong\u003e Business Gigabit IP Phone\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eDisplay:\u003c\/strong\u003e 3.7\" graphical black and white LCD with backlight (360 × 160 px)\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eNumber of SIP accounts:\u003c\/strong\u003e Up to 12 SIP accounts\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eAudio features:\u003c\/strong\u003e Optima HD Voice, Full-Duplex with AEC, Smart Noise Filtering\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eSupported audio codecs:\u003c\/strong\u003e Opus, G.722, G.711(A\/μ), G.723.1, G.729, G.729A, G.726, iLBC\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eNetwork ports:\u003c\/strong\u003e 2× RJ45 10\/100\/1000 Mbps Gigabit Ethernet (PoE IEEE 802.3af, Class 2)\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eUSB interface:\u003c\/strong\u003e 2× USB 2.0 Type-A (for headphones, Wi-Fi\/BT dongle, USB recording)\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eOther connectors:\u003c\/strong\u003e 1× RJ9 (4P4C) handset jack, 1× RJ9 (4P4C) headset jack\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eExpandability:\u003c\/strong\u003e Support for Yealink EXP43 module (up to 3 modules)\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eDirectory and history:\u003c\/strong\u003e Local directory up to 1000 entries, XML\/LDAP remote directory\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eMounting:\u003c\/strong\u003e Tabletop stand (2 corners) or wall mount\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eWarranty:\u003c\/strong\u003e 24 months\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Package contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e 1× IP phone Yealink SIP-T43U\u003c\/li\u003e\n\u003cli\u003e 1× Telephone handset with connection cable\u003c\/li\u003e\n\u003cli\u003e 1× Ethernet cable (CAT5e UTP, 1.5 m)\u003c\/li\u003e\n\u003cli\u003e 1× Two-position desktop stand\u003c\/li\u003e\n\u003cli\u003e User documentation and quick installation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eIt is important to know\u003c\/h2\u003e\u003cp\u003e When choosing, first check compatibility with the VoIP provider or system you already use. Another important practical trade-off is whether you will take advantage of multiple account options and whether your network supports the selected power method.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e The number of supported accounts does not in itself guarantee compatibility: check the support of a specific provider or VoIP environment before purchasing.\u003c\/li\u003e\n\u003cli\u003e Multiple accounts are an advantage especially when you will actually use them; for basic home telephony, such capacity may be redundant.\u003c\/li\u003e\n\u003cli\u003e PoE power is only convenient if there is a suitable PoE source available on the network. If you haven't checked this, clarify what kind of power supply you will need before purchasing.\u003c\/li\u003e\n\u003cli\u003e The stability of your internet connection also affects call quality, so problems cannot be attributed solely to your phone.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003cem\u003eSource of editorial recommendations: general verifiable guidelines for product selection.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003e In practice\u003c\/h2\u003e\u003ch3\u003e 🟢 Multiple SIP accounts in a business environment\u003c\/h3\u003e\u003cp\u003e Very suitable for users who need multiple registered accounts; check before using if their VoIP environment also supports it.\u003c\/p\u003e\u003ch3\u003e 🟡 Basic home internet telephony\u003c\/h3\u003e\u003cp\u003e Suitable with limitations, as the multiple account options may go unused if you only need simple phone calls.\u003c\/p\u003e\u003ch3\u003e 🟢 Workplace with PoE network\u003c\/h3\u003e\u003cp\u003e Very convenient when the network equipment supports PoE, as the phone can use the network connection for power.\u003c\/p\u003e\u003ch2\u003e Answers to frequently asked questions\u003c\/h2\u003e\u003ch3\u003e Will the phone work with every VoIP provider?\u003c\/h3\u003e\u003cp\u003e This cannot be assumed. Before purchasing, check whether your provider or VoIP system supports this model.\u003c\/p\u003e\u003ch3\u003e Do I need a computer for everyday phone calls?\u003c\/h3\u003e\u003cp\u003e With IP phones, a computer is generally not required for everyday calls. The initial setup may depend on the provider and the VoIP environment used.\u003c\/p\u003e\u003ch3\u003e Will call quality depend solely on the phone?\u003c\/h3\u003e\u003cp\u003e No. The quality is also affected by the stability of the internet connection, so it makes sense to check the entire network environment.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e\u003cbr \/\u003e\n{\u003cbr \/\u003e\n  \"@context\": \"https:\/\/schema.org\",\u003cbr \/\u003e\n  \"@type\": \"FAQPage\",\u003cbr \/\u003e\n  \"mainEntity\": [\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali bo telefon deloval z vsakim VoIP ponudnikom?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Tega ni mogoče predpostaviti. Pred nakupom preverite, ali ponudnik oziroma vaš VoIP sistem podpira ta model.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali za vsakodnevno telefoniranje potrebujem računalnik?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Pri IP telefonih računalnik praviloma ni potreben za vsakodnevne klice. Začetna nastavitev je lahko odvisna od ponudnika in uporabljenega VoIP okolja.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali bo kakovost klicev odvisna samo od telefona?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Ne. Na kakovost vpliva tudi stabilnost internetne povezave, zato je smiselno preveriti celotno omrežno okolje.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    }\u003cbr \/\u003e\n  ]\u003cbr \/\u003e\n}\u003cbr \/\u003e\n\u003c\/script\u003e\u003cp style=\"font-size: 0.9em; color: #666;\"\u003eDescription updated: November 2026\u003c\/p\u003e\u003ch2\u003e Why buy from ENAA?\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e The descriptions on ENAA are designed neutrally and with clear summaries of benefits and functionality, leaving the decision to the buyer.\u003c\/li\u003e\u003c\/ul\u003e","brand":"Yealink","offers":[{"title":"Default Title","offer_id":59269033623883,"sku":null,"price":217.34,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/3457\/3643\/files\/ip_telefon_yealink_sip_t43u_gigabitni_12_sip_racunov_2_usb_3_7_palcni_lcd_poe_220yeat43u.jpg?v=1794570855","url":"https:\/\/enaa.eu\/products\/ip-phone-yealink-sip-t43u-gigabit-12-sip-accounts-2-usb-3-7-inch-lcd-poe","provider":"Enaa","version":"1.0","type":"link"}