What to do if AudioCodes 450HD displays 'Duplicate IP'?
If your AudioCodes IP Phone displays a 'Duplicate IP' message, delete the duplicate IP address in the DHCP server and request another one.
What to do if AudioCodes 450HD IP Phone shows 'PIN account disabled'?
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.
What to do if AudioCodes IP Phone shows 'PIN expired'?
If your AudioCodes IP Phone displays 'PIN expired', renew the PIN expiration policy in the Skype for Business server interface.
How to fix AudioCodes 450HD IP Phone if it is not initializing?
If your AudioCodes IP Phone is not initializing, make sure DHCP is enabled.
What to do if AudioCodes 450HD IP Phone shows 'PIN not set'?
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.
How to fix 'Cannot find SIP server' error on AudioCodes 450HD IP Phone?
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).
What to do if AudioCodes 450HD shows 'PIN invalid phone info'?
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.
What to do if AudioCodes 450HD IP Phone shows 'Failed to validate certificate' or 'Failed to obtain user certificate'?
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.
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 |
Highlights of the 450HD IP Phone, including touch screen and UC capabilities.
How the phone integrates with UC environments like Skype for Business.
Contents of the package and identification of phone components.
Steps for connecting the phone's cables for power and network.
Procedures for mounting the phone on a desk or wall.
Understanding the phone's touch screen interface and idle state display.
Explains softkeys and how to navigate through phone menus.
Procedures for entering numbers, letters, and symbols using the keypad.
Steps for signing into and out of the phone for user access.
Configuring language, ring tones, call waiting, and call forwarding.
Adjusting phone volume and screen brightness for user preference.
Managing personal and corporate directories, adding, searching, and editing contacts.
Customizing function keys for speed dial, BLF, and key events.
Managing presence status and viewing calendar integration.
Core functions of making, answering, ending, and rejecting calls.
Reviewing call logs and managing voicemail messages.
Managing waiting calls, call hold, and multiple incoming calls.
Performing various call transfer types and setting up conferences.
Setting up and using Better Together over Ethernet for PC/phone integration.
Using BToE functions for enhanced Skype for Business client features.
Guidance for resolving typical phone operational problems.
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