Key Features & Specifications

📱 Display & User Interface

• 5-inch color capacitive touchscreen (resolution 720 × 1280 px) with multitouch support and gesture-based navigation. ipphone-warehouse.com+2dekom.com+2

• 9:16 aspect ratio, on-screen virtual keyboard, screen saver, adjustable base height, multilingual user-interface, normal & dark mode. fusionconnect.com+2polycom-tw.com.tw+2

• Supports voicemail, call history, and other desk-phone features via intuitive touch UI. fusionconnect.com+1

🔊 Audio & Call Quality

• Equipped with Poly HD Voice and Acoustic Clarity technologies — delivering high-quality, full-duplex audio for handset, speakerphone, or headset modes. dekom.com+2B&H Photo Video+2

• Built-in speakerphone with noise suppression and echo cancellation; also supports Acoustic Fence (for background-noise reduction) and NoiseBlock AI when used with speakerphone. HP Support+2Network Hardwares+2

• Voice codecs supported: G.711 (μ / A-law), G.722 (HD), G.722.1, G.729AB, iLBC, plus OPUS for better audio efficiency. polycom-tw.com.tw+2Accelerator+2

• Frequency response (handset/headset/speaker) up to ~100 Hz–20 kHz (depending on mode) for clear, natural-sounding audio. polycom-tw.com.tw+1

• Individual volume controls (handset / headset / speaker), voice-activity detection, comfort-noise generation, packet-loss concealment, and low-delay packet transmission — ensures quality even on less-reliable networks. ipphone-warehouse.com+2HP Support+2

🔌 Connectivity & Interfaces

• Dual Gigabit Ethernet ports (LAN + PC pass-through) — 10/100/1000Base-TX. Accelerator+1

• Supports Power over Ethernet (PoE, IEEE 802.3af), or via external 48 V DC power adapter. telecomex.com+1

• Ports: 1 × USB-A and 1 × USB-C (2.0) for headsets, accessories, or media/storage applications. telecomex.com+1

• Headset connectivity: RJ-9 wired headset port, USB headset support, and integrated Bluetooth 4.2 — gives flexibility for wired or wireless headsets. pmctelecom.co.uk+1

• Supports SIP protocol (for VoIP) / Open SIP or — for some SKUs — integration with platforms like Microsoft Teams (if using the “Teams Edition” version). ipphone-warehouse.com+2fusionconnect.com+2

• Supports secure provisioning & management: HTTPS / TLS, SRTP for media encryption, 802.1X for network authentication, encrypted configuration files, secure software updates. HP Support+1

• Supports centralized provisioning via FTP/TFTP/HTTP/HTTPS — useful for enterprise deployments and mass provisioning. ipphone-warehouse.com+1

• Works with management tools such as Poly Lens or vendor-side device management solutions for remote configuration and fleet management. HP Support+1

🧰 Telephone / Call Features

• Can register up to 24 SIP lines (depending on firmware/VoIP server) — helpful for busy offices, reception desks, call-centres. 101voice.com+1

• Supports standard functions: hold / transfer / call waiting / voicemail / call history / call timer / DTMF / conferencing (depending on VoIP platform / PBX). media.howard.com+1

• Users can use handset, wired headphone, USB headset, or Bluetooth headset depending on preference or environment — offers flexibility. telecomex.com+1