{"product_id":"yealink-sip-t43u-12-line-gigabit-ip-phone-grey","title":"Yealink SIP-T43U 12-Line Gigabit IP Phone Grey","description":"\u003cp\u003e\u003cstrong\u003eYealink SIP-T43U 12-Line Gigabit IP Phone Grey LCD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSound and Hear with Remarkable Clarity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"1.png\" src=\"https:\/\/www.yealink.com\/website-service\/attachment\/editor\/upload\/image\/20231024\/1698111044209039989.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEfficient Deployment and Management\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYealink T4U series supports effortless mass deployment and Zero Touch Provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism, making the device management labor-saving and efficient for the administrators.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"best business phone,sip phone services,ip phones for business,office phone systems for small business\" src=\"https:\/\/www.yealink.com\/website-service\/attachment\/product\/image\/20220411\/2022041109375597b6fb76ac4665bf1aa0e2e5f90bc4.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eColor-screen Expansion Module EXP43\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 4.3-inch color screen expansion module is designed to offer advanced call handling capabilities with its simplified UI and up to 60 programmable keys for various features.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYealink Wireless\/Wired USB Headsets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSeamlessly compatible with Yealink wireless\/wired USB headsets to meet the needs of users with large call volumes or headset preference and ideal for call center or administrative assistants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD YOUR UNCRACKABLE, PHONE SECURITY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe T43U is shielded with the latest security mechanisms, making your conversations more secure than ever. With TLS 1.3, you benefit from faster and more robust encryption. Learn more enhanced security features in the V87 upgrade.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.yealink.com\/website-service\/attachment\/product\/image\/20250402\/202504020617324060bdc.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser Interface Features - \u003c\/strong\u003e3.7\" screen with backlight\u003cbr\u003e\u003cstrong\u003eAudio Features - \u003c\/strong\u003eOptima HD voice with Acoustic Shield and Smart Noise Filtering\u003cbr\u003e\u003cstrong\u003eBasic Features - \u003c\/strong\u003eUp to 12 SIP accounts, PoE support , Stand with two adjustable angles, wall mountable\u003cbr\u003e\u003cstrong\u003eAdvanced Features - \u003c\/strong\u003eWi-Fi via WF40\/WF50, Bluetooth via BT41, Support expansion modules, Support USB recording\u003cbr\u003e\u003cstrong\u003eConnectivity - \u003c\/strong\u003eDual USB ports, dual-port Gigabit Ethernet, Headset, EHS support\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAudio Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHD voice:\u003c\/strong\u003e HD handset, HD speaker\u003c\/li\u003e\n\u003cli\u003eHearing aid compatible (HAC) handset\u003c\/li\u003e\n\u003cli\u003eAcoustic Shield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWideband codec: \u003c\/strong\u003eAMR-WB (optional), Opus, G.722\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrowband codec: \u003c\/strong\u003eAMR-NB (optional), Opus, G.711(A\/µ), G.723.1, G.729AB, G.726, iLBC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDTMF:\u003c\/strong\u003e In-band, Out-of-band(RFC 2833) and SIP INFO\u003c\/li\u003e\n\u003cli\u003eFull-duplex hands-free speakerphone with AEC\u003c\/li\u003e\n\u003cli\u003eVAD, CNG, AEC, PLC, AJB, AGC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay and Indicator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3.7\" 360x160-pixel graphical LCD with backlight\u003c\/li\u003e\n\u003cli\u003eLED for call and message waiting indication\u003c\/li\u003e\n\u003cli\u003eDual-color (red or green) illuminated LEDs for line status information\u003c\/li\u003e\n\u003cli\u003eIntuitive user interface with icons and soft keys\u003c\/li\u003e\n\u003cli\u003eMultilingual user interface\u003c\/li\u003e\n\u003cli\u003eCaller ID with name and number\u003c\/li\u003e\n\u003cli\u003ePower saving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhone Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12 VoIP accounts\u003c\/li\u003e\n\u003cli\u003eOne-touch speed dial, redial\u003c\/li\u003e\n\u003cli\u003eCall forward, call waiting, call transfer, call hold\u003c\/li\u003e\n\u003cli\u003eCall return, group listening, emergency call\u003c\/li\u003e\n\u003cli\u003eMute, auto answer, DND, hoteline\u003c\/li\u003e\n\u003cli\u003e5-way conference call\u003c\/li\u003e\n\u003cli\u003eDirect IP call without SIP proxy\u003c\/li\u003e\n\u003cli\u003eRing tone selection\/import\/delete\u003c\/li\u003e\n\u003cli\u003eSet date time manually or automatically\u003c\/li\u003e\n\u003cli\u003eDial Plan, XML Browser, Action URL\/URI\u003c\/li\u003e\n\u003cli\u003eRTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)\u003c\/li\u003e\n\u003cli\u003eDual USB ports (2.0 compliant) Bluetooth earphone through BT40\/BT41, Contact synchronization through BT40\/BT41, Wi-Fi through WF40\/WF50, USB call recording through USB flash drive, USB headset, Expansion Module EXP43, Wireless Headset Adapter EHS40\u003c\/li\u003e\n\u003cli\u003eEnhanced DSS key\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInterface:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual-port Gigabit Ethernet\u003c\/li\u003e\n\u003cli\u003ePower over Ethernet (IEEE 802.3af), Class 2\u003c\/li\u003e\n\u003cli\u003e2 x USB port (2.0 compliant)\u003c\/li\u003e\n\u003cli\u003e1 x RJ9 (4P4C) handset port\u003c\/li\u003e\n\u003cli\u003e1 x RJ9 (4P4C) headset port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNetwork and Security:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSIP v1 (RFC2543), v2 (RFC3261)\u003c\/li\u003e\n\u003cli\u003eCall server redundancy supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNAT traversal:\u003c\/strong\u003e STUN mode\u003c\/li\u003e\n\u003cli\u003eProxy mode and peer-to-peer SIP link mode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP assignment: \u003c\/strong\u003estatic\/DHCP\u003c\/li\u003e\n\u003cli\u003eHTTP\/HTTPS web server\u003c\/li\u003e\n\u003cli\u003eTime and date synchronization using SNTP\u003c\/li\u003e\n\u003cli\u003eUDP\/TCP\/DNS-SRV(RFC 3263)\u003c\/li\u003e\n\u003cli\u003eQoS: 802.1p\/Q tagging (VLAN), Layer 3 ToS DSCP \u0026gt; SRTP for voice\u003c\/li\u003e\n\u003cli\u003eTransport Layer Security (TLS)\u003c\/li\u003e\n\u003cli\u003eHTTPS certificate manager\u003c\/li\u003e\n\u003cli\u003eAES encryption for configuration file\u003c\/li\u003e\n\u003cli\u003eDigest authentication\u003c\/li\u003e\n\u003cli\u003eOpenVPN, IEEE802.1X\u003c\/li\u003e\n\u003cli\u003eIPv6\u003c\/li\u003e\n\u003cli\u003eLLDP\/CDP\/DHCP VLAN \u0026gt; ICE\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yealink","offers":[{"title":"Default Title","offer_id":47142534906034,"sku":"T43U","price":2550.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/2147\/5250\/files\/Screenshot_2026-03-04_at_08.36.37.png?v=1772606253","url":"https:\/\/kernell.co.za\/products\/yealink-sip-t43u-12-line-gigabit-ip-phone-grey","provider":"Kernell Electronics","version":"1.0","type":"link"}