AudioCodes 440HD User Manual (English)

Other manuals for AudioCodes 440HD

Questions and Answers:

B
bondderrickJul 26, 2025
What to do if my AudioCodes IP Phone is off (no LCD displays and LEDs)?
- S
  Sarah Green MDJul 26, 2025
  If your AudioCodes IP Phone is off, meaning there are no LCD displays and LEDs, the phone is likely not receiving power. Here are a few things to check: * Ensure the AC/DC power adapter is firmly attached to the DC input on the rear of the phone. * Confirm the AC/DC power adapter is properly plugged into the electrical outlet. * Verify that the electrical outlet is functional. * If you are using Power over Ethernet (PoE), contact your system administrator to ensure the switch is supplying power to the phone.
J
john00Jul 30, 2025
What to do if my AudioCodes 440HD IP Phone displays 'LAN Link Failure'?
- J
  Jillian JohnsonJul 30, 2025
  If your AudioCodes IP Phone displays a 'LAN Link Failure' message, it indicates there is no LAN connection. To resolve this: * Verify that the LAN cable is securely connected to the LAN port on the rear of the phone. * Ensure the other end of the LAN cable is connected to the network switch. If it is not, contact your system administrator.
J
Jacqueline BaileyAug 4, 2025
Why is my AudioCodes 440HD IP Phone not ringing?
- D
  Diana FlynnAug 4, 2025
  If your AudioCodes IP Phone is not ringing, it is possible that the ring volume is set too low. Increase the volume. See Section 4.10.1 for instructions.
L
Leslie WilliamsonAug 9, 2025
How to fix IP Duplication on AudioCodes 440HD IP Phone?
- J
  Jamie MarksAug 9, 2025
  A duplicate IP address conflict can occur on a DHCP network if you defined a static IP address for a network device. To resolve this, convert the network device with the static IP address to a DHCP client, or exclude the static IP address from the DHCP scope on the DHCP server.
D
Dawn KimAug 12, 2025
What to do if my AudioCodes 440HD headset has no audio?
- M
  Michael GalvanAug 12, 2025
  If your headset has no audio, there might be a connection problem. First, verify that your headset is securely plugged into the headset port located on the side of the phone. Then, check that the headset volume level is adjusted adequately. See Section 4.10.5 for details.
D
Daniel PhillipsAug 17, 2025
Why does my AudioCodes IP Phone display 'Registration…' and calls cannot be made or received?
- O
  Olivia PaulAug 17, 2025
  If your AudioCodes IP Phone displays a 'Registration…' message and you cannot make or receive calls, it means that the line is not registered to the network. For assistance, contact your system administrator.
M
Mitchell SmithAug 21, 2025
How to improve poor LCD display on AudioCodes 440HD?
- A
  Amber RichardsonAug 21, 2025
  If the LCD display on your AudioCodes IP Phone is poor, you can adjust the phone’s screen contrast level (see Section 4.5) and the screen’s backlight timeout (see Section 4.6).

AudioCodes 440HD Specifications

General

Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.711Mu, G.711a, G.722, G.729A, G.729B, OPUS
Packet loss concealment (PLC)	Yes
Certification	FCC 15 B, ICES-003 B, EN55032 B, EN61000-3-2, EN61000-3-3, UL-60950-1, EN60950-1, IEC-60950-1 (CB), CE, cTUVus RCM, KC, Anatel, CCC, ICASA, EAC, IC, ACTA, VCCI, BSMI
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Lines quantity	6 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Wi-Fi	No
Security algorithms	HTTPS, SRTP, SSL/TLS
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	IPv4, TCP, UDP, ICMP, ARP, RTP, SRTP, RTCP-XR, 802.1x, IP/DHCP IP, IEEE 802.1p/Q, QoS/ToS, HTTP/HTTPS/DHCP, NTP, FTP/TFTP, CDP/LLDP VLAN, LDAP
Display resolution	256 x 128 pixels
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
AC adapter input voltage	100 - 240 V
Volume control	Buttons
Number of programmable keys	18
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Handset type	Wired handset
Product type	IP Phone
Product color	Black