Yealink SIP-T21P E2 - Corporate IP Phone Entry-Level Professional | HD Voice | 2 Account SIP | PoE Support The Yealink SIP-T21P E2 redefines the entry-level IP phone standard. Made of high quality materials, this phone offers a smooth and professional experience. Equipped with a large 132x64 pixel graphic LCD display with backlight, it allows you to clearly display up to 5 lines of data, ensuring all necessary information at a glance. Thanks to HD Voice technology and Opus codec support, audio quality is crystalline, reducing fatigue during long working days. The P version (PoE) allows power directly via network cable, simplifying the wiring in the office. Main Features High Quality HD Audio: Hardware and software designed to maximize acoustic performance, with echo cancellation (AEC) and adaptive buffer for a natural and sharp voice. Advanced Call Management: Supports 2 VoIP accounts, 3-way conference, BLF (Busy Lamp Field), call park, call transfer and XML/LDAP column up to 1000 entries. Double Power Supply: Supports both the PoE (Power over Ethernet) standard for a clean installation without additional cables, and the power supply via AC adapter included. Supports encrypted protocols SRTP/HTTPS/TLS and certification for leading platforms such as 3CX and Broadsoft . Yealink SIP-T21P E2 - Professional IP Phone 2 Account SIP | Audio HD | PoE Support | Retroilluminate Screen ACCOUNT VOIP: Supports up to 2 DISPLAY SIP Accounts: LCD Chart 132x64 pixels with backlight (5 lines) AUDIO: Yealink HD Voice (Cornetta and Speaker) NETWORK: Dual-port 10/100M Ethernet Switch ALIMENTATION: Integrated PoE Support (Power over Ethernet) --- AUDIO FEATURES ADVANCED CODEC WIDEBAND: Opus, G.722, AMR-WB (optional) VIVAVOCE: Full-duplex with echo cancellation (AEC) TECHNOLOGIES: VAD, CNG, AEC, PLC, AJB, AGC for maximum clarity COMPATIBILITY: Headphone support via dedicated RJ9 port --- CHIAMATE MANAGEMENT AND IP-PBX FUNTIONS: Watch out, Mute, DND, Transfer, 3 RUBRICA Conference: Up to 1000 local voices + Remote XML/LDAP Support LED INDICATORS: Two-tone LEDs for line status and waiting messages/calls ADVANCED: BLF (Busy Lamp Field), Call Park, Pickup, Hot-desking --- SECURITY AND PROTOCOL INSTALLATION: SIP v1/v2, IPv6, OpenVPN, SRTP, HTTPS, TLS PROVISIONING: Zero Touch (RPS), FTP/TFTP/HTTP/HTTPS, PnP MONTAGGIO: Wall mounted or adjustable base support CONTENT: Telephone, cable, Ethernet cable, base, guide