Call Toll-Free: 1-800-398-8647

Customer Reviews

Product was successfully added to your shopping cart.

Product was successfully added to your shopping cart.
AudioCodes Logo

Audiocodes 320HD (Discontinued)

The Audiocodes 320HD has been made end of life by the manufacturer. The direct replacement is the Audiocodes 420HD PoE. For more information or if you have questions, please call 800.398.8647.

See all reviews

Product Details
1 Year
MSRP Price:
% Off:
Tech Specs
High Definition:
Protocols Supported:
# of Ethernet Ports:

Audiocodes 320HD IP Phone with HD Voice

The AudioCodes 320HD IP Phone includes a 2nd Ethernet port for PC, 16 Programmable keys, 132x64 Graphic LCD Display and Power over Ethernet (PoE).

The AudioCodes 320HD IP Phone meets a growing demand for High Definition VoIP solutions in end-user phones and terminals, improving the productivity and efficiency of business communications with new quality standards set by the High Definition voice technology.

The 320HD 4-line Premium model HD IP Phone includes a large Monochrome LCD screen.

IP320HDE Product Overview

Cutting Edge Voice Quality

Based on AudioCodes' advanced, robust and field-proven VoIPerfectHD software, AudioCodes' IP Phones are designed to utilize the most popular wideband coders such as G.722, G.722.2 (WB-AMR), G.729.1, EVRC-B and G.711.1. Each of these phones feature enhanced proprietary capabilities, such as packet loss concealment, high quality wideband acoustic echo canceller, and low-delay adaptive jitter buffers to enrich the HD VoIP experience.


The AudioCodes 300HD Series of High Definition IP Phones is widely interoperable with IP-PBXs, Softswitches and IP Centrex solutions. As Enterprises and Service Providers continue to seek open network architectures that enable them to maximize value and reduce costs, AudioCodes best-of-breed technology, wide interoperability, and adherence to standards make the 300HD Series of High Definition IP Phones a natural selection.


HD VoIP refers to the use of wideband technology, providing deeper clarity and a better audio experience in VoIP Communications. The traditional Public Switch Telephony Network (PSTN) is limited to 300-3400 Hz for narrowband speech. Voice signals are sampled at a rate of 8 kHz, causing limitations in communication quality and comprehension. In HD VoIP, wideband telephony refers to transmitting speech signals with bandwidths ranging between 50-7000 Hz and a sampling rate of 16 kHz. This effectively doubles the narrowband speech signal bandwidth and offers the caller "true voice" conversation. Compared to narrowband telephony, wideband technology establishes a sense of presence, resulting in a natural and comfortable conversation.

320HD Specifications

Key features
  • 4-line IP Phone with Indicators
  • 132x64 Graphic LCD Display
  • 12 Speed Dial keys with Busy Lamp Field
  • SIP RFC3261, Auto Provisioning, Web Management, 2 x IEEE 802.3 10/100 Mbps with Internal Switch
  • Includes power supply
  • Directory, Voice mail, 4-Way Menu navigation, Volume, Transfer, Conference, Forward, Mute, Hold, Redial, Headset, Full Duplex Speakerphone
Telephony Features
  • Call Waiting, Call Hold, Call Transfer, Call Forward, 3-Way Conference, Hot Line, DND, Mute, Speed Dial, Dialing Plan, Phone Book
  • Signaling: Caller ID, MWI, DTMF Relay – RFC2833, DTMF via SIP INFO, Configurable Call Progress Tones
Media Processing
  • Narrowband Voice Codecs: G.711µ/a, G.729A/B, G.723.1
  • Wideband Voice Codecs: G.722
  • Echo Cancellation: Acoustic echo cancellation - multiple path, Wideband acoustic echo cancellation
  • Packet Loss Concealment: Proprietary, innovative, time variant algorithm
  • Silence Suppression: VAD, CNG
  • Adaptive Jitter Buffer: 300 MS - adaptive minimum delay buffer
Protocol Support
  • VoIP Signaling: SIP – RFC 3261, SIP over TLS
  • Data Protocols: IPv4, TCP, UDP, ICMP, ARP, RTP, RTCP, PPPoE, Static IP and DHCP IP Assignment, IEEE 802.1p/Q, QoS/ToS, HTTP/DHCP, CDP VLAN Configuration
  • Provisioning & Management: Web Server for Configuration and Management, Configuration update via FTP, TFTP, HTTP, HTTPS