Your front desk is drowning in missed calls because the old phone only handles two lines and the audio sounds like it's being spoken through a tin can. The SIP-T73U fixes both. Twelve SIP accounts on one handset, HD voice with Acoustic Shield and Smart Noise Filtering so the caller hears you clearly even in a busy open-plan office. PoE means one cable to the desk — no hunting for a power outlet under the chair. SBC-ready, so your PBV provider can drop it straight onto your SIP trunk without extra middleware. The 2.8-inch colour display shows caller ID, voicemail count, and line status at a glance. Linux 6.1 with TEE hardware encryption keeps the handset locked down if you're running security-sensitive comms. One thing to note: the 5V/2A power adapter (IPY-SIPPWR5V2A) is sold separately. If you're on PoE, you won't need it. Add the phone to your cart and it's on its way
| brand | Yealink |
| model | SIP-T73U |
| category | Technology |
| subcategory | VoIP Devices & Accessories |
| display | 2.8" 320×240 colour, backlit |
| sip_accounts | 12 |
| power | PoE (5V/2A adapter IPY-SIPPWR5V2A sold separately) |
| os | Linux 6.1 |
| security | TEE hardware encryption |
| audio | HD voice, Acoustic Shield, Smart Noise Filtering |
| compatibility | Yealink expansion modules, Bluetooth/Wi-Fi adapters, USB headset/recording |
| sbc_ready | 1 |
| rrp_aud | 251 |