AudioCodes 405HD IP Phone – PoE, Gigabit Ethernet, 2-Line SIP, Teams & Zoom Certified (IP405HDEG)

The AudioCodes 405HD is a cost-effective, standards-based IP phone that delivers the essentials — PoE, Gigabit Ethernet, 2-line SIP, and certified compatibility with Microsoft Teams, Zoom Phone, and Skype for Business — in a clean desk phone form factor. It's the practical choice for organizations standardizing on a certified SIP phone that integrates with their UC platform without requiring premium-tier hardware investment on every desk.

The Telecom Spot Take

The 405HD hits a sweet spot that a lot of enterprise phone standardization programs are looking for: a fully certified, enterprise-grade SIP phone at a price point that makes sense for the broad base of the organization — administrative staff, open-plan workers, meeting rooms, and shared workspaces. Teams and Zoom certification means IT doesn't have to worry about compatibility edge cases; the phone works with the platforms your organization already uses. Gigabit Ethernet pass-through means the phone chains into the desk's network connection without requiring an extra data port at each workspace. PoE eliminates the wall outlet requirement. The USB port adds flexibility for USB headset connectivity. AudioCodes auto-provisioning means deploying a fleet is a central configuration task, not a desk-by-desk operation.

Key Features

• Microsoft Teams & Zoom Phone certified: Works natively with Teams Direct Routing, Zoom Phone, and Skype for Business environments — no compatibility guesswork.
• Power over Ethernet (802.3af PoE): Single cable to the desk — no power outlet required. Optional 12VDC adapter for non-PoE environments.
• Gigabit Ethernet (dual ports): 1000Base-T LAN + PC pass-through port — connects the desk computer through the phone with no speed penalty.
• 2-line SIP: Manages two independent SIP lines for call handling, transfer, and hold.
• Full-duplex speakerphone: Hands-free calling without a headset for brief conversations.
• USB port: Connect a USB headset directly to the phone for corded or wireless headset operation.
• Graphical LCD (132×64): Backlit, multilingual display with 4 programmable soft keys for call control and feature access.
• AudioCodes auto-provisioning: Central configuration and fleet deployment via DHCP/HTTP provisioning — no per-phone manual setup.

Technical Specifications