{"product_id":"yealink-sip-t73u-ip-phone","title":"Yealink SIP-T73U Gigabit IP Phone with 2.8-Inch Color Display and 12 SIP Lines for Enterprise VoIP","description":"\u003cp\u003eThe Yealink SIP-T73U is an enterprise-grade IP phone designed to meet the demanding communication needs of modern businesses. Built on Linux 6.1 with TEE hardware encryption, it delivers professional-grade performance with robust security features including TLS 1.3, SRTP media protection, and a three-layer security architecture. The phone's Hall switch technology provides a quieter office environment, while its redesigned slim profile matches contemporary workplace aesthetics.\u003c\/p\u003e\n\u003cp\u003eSupporting up to 12 SIP accounts with dual gigabit Ethernet connectivity, the T73U handles high call volumes without network bottlenecks. The 2.8-inch color display presents call information clearly, and the extensive programmability—40 onboard keys expandable to 234 with EXP55 modules—streamlines operations for receptionists, call center agents, and power users. HD voice codec support, combined with Acoustic Shield and Smart Noise Filtering, ensures exceptional audio clarity for every conversation.\u003c\/p\u003e\n\u003cp\u003eWide compatibility with leading platforms like 3CX, Broadsoft, and Broadworks, plus unified firmware across the T7 series, simplifies IT management and deployment at scale. PoE support reduces cabling complexity, while the USB 2.0 port enables connection of headsets, wireless adapters, or storage devices for call recording.\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe SIP-T73U excels in enterprise environments requiring high-capacity line management, programmable call handling, and secure communications:\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eCorporate reception desks\u003c\/strong\u003e where operators manage multiple lines and need instant access to directory contacts and transfer functions through programmable DSS keys\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eCall center supervisor stations\u003c\/strong\u003e requiring monitoring of agent lines, quick conference setup, and expansion modules for extensive presence visualization\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eExecutive offices\u003c\/strong\u003e demanding secure encrypted communications, professional audio quality, and integration with USB headsets for all-day comfort\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eFinancial and healthcare institutions\u003c\/strong\u003e where TLS 1.3 encryption, secure boot, and configurable security policies meet compliance requirements\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eProfessional services firms\u003c\/strong\u003e deploying standardized VoIP systems across multiple offices using 3CX, Broadsoft, or similar platforms\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003e- 12 SIP account registrations support high-density line assignments for receptionists, shared lines, or departmental routing\u003c\/p\u003e\n\u003cp\u003e- Dual gigabit Ethernet ports with PoE IEEE 802.3af eliminate network bottlenecks and simplify installation without separate power adapters\u003c\/p\u003e\n\u003cp\u003e- 40 programmable buttons across five pages, expandable to 234 total keys with three EXP55 modules cascaded via USB\u003c\/p\u003e\n\u003cp\u003e- HD voice codecs (G.722, AMR-WB) with 3W speaker, Acoustic Shield, and Smart Noise Filtering deliver crystal-clear audio\u003c\/p\u003e\n\u003cp\u003e- 2.8-inch color LCD (320x240 pixels) with backlight and dual theme support provides clear visual feedback for calls and contacts\u003c\/p\u003e\n\u003cp\u003e- TEE hardware encryption, TLS 1.3, SRTP, and three-layer security architecture (core integrity, network defense, transmission security) protect enterprise communications\u003c\/p\u003e\n\u003cp\u003e- USB 2.0 port supports headsets, Wi-Fi\/Bluetooth\/DECT adapters, local call recording to USB storage, and EXP55 expansion modules\u003c\/p\u003e\n\u003cp\u003e- Dual system backup function allows rollback if firmware upgrade fails, ensuring enterprise-grade reliability\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eQuick Specs\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8-inch color LCD, 320x240 pixels, backlight, dual theme support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSIP Accounts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 registrations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNetwork\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual gigabit Ethernet (RJ-45), IPv4\/IPv6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeys\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 line keys with LED, 40 programmable buttons (5 pages), 4 soft keys, expandable to 234 with EXP55 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAudio Codecs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHD: G.722, AMR-WB; Narrowband: G.711µ\/A, G.729, G.723.1, G.726, iLBC, AMR-NB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAudio Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHD handset\/speaker, 3W speaker, HAC handset, Acoustic Shield, Smart Noise Filtering, full-duplex speakerphone with AEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2x RJ-45 gigabit, 2x RJ-9 (handset\/headset), 1x USB 2.0, 1x DC 5V power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePoE IEEE 802.3af (Class 2) or AC adapter 5V\/2A; consumption 1.30-1.48W (PSU), 1.368-1.832W (PoE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTEE hardware encryption, TLS 1.3, SRTP, AES256 config encryption, secure boot, OpenVPN, IEEE 802.1X, WPA2\/WPA3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtocols\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIP v1\/v2, SRTP, LLDP\/CDP, QoS (802.1p\/Q, DSCP), RTCP-XR, ICE, STUN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3CX, Broadsoft, Broadworks, and major SIP platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3x EXP55 modules (78 keys each, 234 total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Yealink","offers":[{"title":"Default Title","offer_id":54609710481687,"sku":"Custom-Yealink-SIP-T73U","price":128.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/5601\/8967\/files\/Image1-MainProduct_11.png?v=1785949567","url":"https:\/\/epicriseelectronics.com\/products\/yealink-sip-t73u-ip-phone","provider":"EpicRise Electronics LLC","version":"1.0","type":"link"}