AudioCodes 450HD User Manual (English)

Other manuals for AudioCodes 450HD

User Manual132 pages

Installation Guide6 pages

Quick Guide12 pages

Questions and Answers:

S
Susan WalkerAug 23, 2025
What to do if AudioCodes 450HD becomes unusable after power failure during firmware upgrade?
- R
  Rhonda BurnettAug 23, 2025
  If your AudioCodes IP Phone becomes unusable because it was powered off during a firmware upgrade, you can recover the firmware. Ensure your DHCP server supports Options 66 (TFTP server address) and 67 (firmware file) and that these options are configurable. Verify that the TFTP server is running and the firmware file for recovery is in the correct location before connecting the phone. Connect the phone to the IP network, and then to the power outlet. The phone will send a TFTP request to the IP address indicated in DHCP Option 66 to retrieve the firmware file indicated in DHCP Option 67. After the firmware upgrade completes, the phone should boot up successfully.
C
Carol SmithAug 31, 2025
What to do if AudioCodes 450HD displays 'Duplicate IP'?
- B
  Bradley HernandezSep 1, 2025
  If your AudioCodes IP Phone displays a 'Duplicate IP' message, delete the duplicate IP address in the DHCP server and request another one.
D
davidmccarthyAug 30, 2025
What to do if AudioCodes 450HD IP Phone shows 'PIN account disabled'?
- E
  Eric BoyleAug 30, 2025
  If your AudioCodes IP Phone displays 'PIN account disabled', make sure the account is enabled in the Skype for Business server interface. If it isn't, enable it.
B
Bryan GonzalezAug 29, 2025
What to do if AudioCodes IP Phone shows 'PIN expired'?
- T
  Tyler KruegerAug 29, 2025
  If your AudioCodes IP Phone displays 'PIN expired', renew the PIN expiration policy in the Skype for Business server interface.
K
Kelsey JohnstonAug 28, 2025
How to fix AudioCodes 450HD IP Phone if it is not initializing?
- C
  Christine MyersAug 28, 2025
  If your AudioCodes IP Phone is not initializing, make sure DHCP is enabled.
K
kathleenyoderAug 27, 2025
What to do if AudioCodes 450HD IP Phone shows 'PIN not set'?
- B
  brian18Aug 27, 2025
  If your AudioCodes IP Phone shows 'PIN not set', make sure a PIN was configured for the user account in the Skype for Business server interface. If not, create a PIN for the account.
L
laurenhopkinsAug 26, 2025
How to fix 'Cannot find SIP server' error on AudioCodes 450HD IP Phone?
- W
  William MedinaAug 26, 2025
  If your AudioCodes IP Phone can't find the SIP server, make sure at least one of the following is enabled in the DNS server: _sipinternaltls._tcp. (for TLS), DHCP results (Option 120) (for TLS), _sipinternal._tcp. (for TCP), DHCP results (Option 120) (for TCP), _sip._tls. (for TLS), or _sip._tcp. (for TCP).
N
Nathan HallAug 25, 2025
What to do if AudioCodes 450HD shows 'PIN invalid phone info'?
- R
  Robert WilliamsAug 26, 2025
  If your AudioCodes IP Phone displays this notification, ensure the information entered on the phone screen and in the Skype for Business server interface is correct and matches. Also, verify in the Skype for Business server interface that the PIN is enabled; if not, enable it.
M
Margaret FranklinAug 25, 2025
What to do if AudioCodes 450HD IP Phone shows 'Failed to validate certificate' or 'Failed to obtain user certificate'?
- T
  Tonya MendozaAug 25, 2025
  If your AudioCodes IP Phone displays a certificate error, first ensure that DHCP Option 43, sub-option 5, is enabled on your DHCP server. Also, verify you can access the Skype for Business Web service URL: https://lyncsvrWebPoolFQDN:443/CertProv/CertProvisioningService.svc. Finally, check that querying the LDAP server (_ldap._tcp.) is enabled to obtain the root certificate.

AudioCodes 450HD Specifications

General

Resolution	480 x 272 pixels
Audio Quality	HD voice
SIP Accounts	Up to 6
Speakerphone	Full-duplex
Supported Languages	Multiple languages
Number of Lines	6
Display	4.3 inch color LCD
Ethernet Ports	2 (10/100/1000 Mbps)
USB Ports	1 (USB 2.0)
Headset Connection	3.5mm jack
PoE	Yes (802.3af)
Codecs	G.711, G.722, G.729, Opus
Protocols Supported	SIP, RTP
Bluetooth	Optional via USB