AudioCodes 405HD, Administrator'S Manual, Page: 17 / 242

Administrator's Manual 1. Introduction
Version 3.4.3 17 400HD Series IP Phones
1 Introduction
This Administrator’s Manual is intended for network administrators responsible for
configuring AudioCodes’ IP phones in their enterprise telephony networks.
The manual covers AudioCodes’ low-end and high-end phone models:

Low-end phone models: 405HD, 430HD and 440HD

High-end phone models: 445HD, 450HD, C450HD and the HRS conference device
Note:
• Release Notes version 3.4.3
documents support only the following high-end phone
models:
√ 445HD
√ 450HD
√ C450HD
√ HRS conference device
• This Administrator’s Manual documents support both these and the following low-
end phone models:
√ 405HD
√ 430HD
√
440HD
• When a feature is documented but support is still pending, a note will indicate this.
AudioCodes' IP phones are based on AudioCodes' proprietary High Definition (HD) voice
technology, providing clarity and a rich audio experience in Voice-over-IP (VoIP) calls. The
phones are fully-featured telephones that provide voice communication over an IP network,
allowing you to place and receive phone calls, put calls on hold, transfer calls, make
conference calls, and so on.
For a detailed description on hardware installation and for operating the phone's call features,
see the phone’s User's Manual .