AudioCodes C450HD - 1 Overview; Specifications; Table 1-1: C450 HD IP Phone for Microsoft Teams Software Specifications

User's and Administrator's Manual 1. Overview
Version 0.314 9 450HD IP Phone
1 Overview
The AudioCodes C450HD IP phone is a native Microsoft Teams high-end executive business
phone with a large color touch screen and full UC integration for the Native Microsoft Teams
Online market.
The Microsoft Teams C450HD is equipped with a 5-inch color capacitive touch screen, 1280 x
720 resolution and optional integrated Wi-Fi and Bluetooth support (contact your local
AudioCodes representative for more information about regional availability of Wi-Fi / Bluetooth).
The phone can be managed by the Microsoft Teams & Skype for Business Admin Center. For
more information, see https://docs.microsoft.com/en-us/MicrosoftTeams/phones-for-teams.
The phone also features the option to be used as a Microsoft Skype for Business IP phone,
offered as part of AudioCodes’ Managed IP Phones solution which defines the IP phone as an IT-
managed entity and delivers unique and complete lifecycle management of end-user desktop
devices. A single-click switchover between Microsoft Teams with native client experience and
Skype for Business is supported.
1.1 Specifications
The table below summarizes the software specifications of the C450HD IP Phone for Microsoft
Teams.
Table 1-1: C450HD IP Phone for Microsoft Teams Software Specifications
Feature Details
Media Processing
 Voice Coders: G.711, G.729, G.722, SILK Opus
 Acoustic Echo Cancelation: G.168-2004 compliant, 64-msec tail length
 Adaptive Jitter Buffer
 Voice Activity Detection
 Comfort Noise Generation
 Packet Lost Concealment
 RTP/RTCP Packetization (RFC 3550, RFC 3551), SRTP (RFC 3711)
Microsoft Teams phones
feature set

Authentication (Sign in with user credentials; Sign in using PC/Smartphone;
Modern Authentication; Phone lock/unlock)
 Calling (Incoming/Outgoing P2P calls; In-call controls via UI (Mute,
hold/resume, transfer, end call); PSTN calls; Visual Voicemail; 911 support
 Calendar and Presence (Calendar Access and Meeting Details; Presence
Integration; Exchange Calendar Integration; Contact Picture Integration;
Corporate Directory Access)
 Meetings (One-click Join for Meetings; Join Skype for Business meetings;
Meeting Call controls [Mute/unmute, hold/resume, hang up, add/remove
participant]; Meeting Details. See also https://docs.microsoft.com/en-
us/MicrosoftTeams/phones-for-teams.
Configuration / Management
 Microsoft Teams & Skype for Business Admin Center (Provisioning and
Logging)
Debugging Tools
 Log upload to Microsoft server (certification for 3rd party Skype for
Business clients)
 Remote logging via Syslog
 SSH Access
 Capturing the phone screen
 TCPdump
 Company Portal (Intune) logs

Audio Debug recording logs