Why does my AudioCodes IP Phone say 'Failed to connect server'?
If your AudioCodes IP Phone displays 'Failed to connect server' or 'Cannot find Lync server at ', ensure that 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), _sip._tcp. (for TCP).
How to enable a disabled PIN account on AudioCodes C450HD IP Phone?
If your AudioCodes IP Phone displays 'PIN account disabled', make sure in the Skype for Business server interface that the account was enabled. If it wasn't, enable it.
What to do if AudioCodes C450HD IP Phone says 'PIN expired'?
If your AudioCodes IP Phone displays 'PIN expired', renew the PIN expiration policy in the Skype for Business server interface.
How to troubleshoot 'PIN internal error' on AudioCodes IP Phone?
To troubleshoot a 'PIN internal error' message on your AudioCodes IP Phone: * Test the PIN Authentication process on the Skype for Business server by running the emulate cmdlet in the server shell: Test-CsPhoneBootstrap -PhoneOrExt nnnn -PIN nnnn. * If the test result is 'fail', there's a configuration error on the Skype for Business server side, hence the PIN sign-in failure on the phone side.
Why does my AudioCodes IP Phone say 'Location look-up failed'?
If your AudioCodes IP Phone displays 'Location look-up failed. Please enter your address', make sure 'Location look up' is configured by the management shell in the Skype for Business server.
How to fix 'Duplicate IP' error on AudioCodes C450HD IP Phone?
If your AudioCodes IP Phone displays 'Duplicate IP', in the DHCP server, delete the duplicate IP address and request another.
How to resolve 'PIN not set' on AudioCodes C450HD IP Phone?
If your AudioCodes IP Phone displays 'PIN not set', make sure in the Skype for Business server interface that a PIN was configured for this user account. If it wasn't, create a PIN for the account.
What does 'PIN invalid phone info' mean on AudioCodes IP Phone?
If your AudioCodes IP Phone displays 'PIN invalid phone info', make sure the correct information was entered in the phone screen and in the Skype for Business server interface, and that they tally. Also, verify in the Skype for Business server interface that the PIN is enabled and if it isn't, enable it.
How to fix 'Failed to validate certificate' on AudioCodes C450HD?
If your AudioCodes IP Phone shows 'Failed to validate certificate' or 'Failed to obtain user certificate': * Make sure DHCP Option 43, sub-option 5, was enabled in the DHCP server. If it wasn't, enable it. * Make sure you can access the Skype for Business Web service URL: https://lyncsvrWebPoolFQDN:443/CertProv/CertProvisioningService.svc * Query the LDAP server: _ldap._tcp.. Make sure it was enabled. If it wasn't, enable it in order to get the root certificate.
What to do if AudioCodes C450HD becomes unusable after power failure during firmware upgrade?
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.
Key features of the C450HD model.
Designed for UC environments like Skype for Business.
Ensures all necessary items are present and undamaged.
Familiarizes users with the phone's hardware functions.
Instructions for connecting the phone's cables.
Procedures for mounting the phone on a desk or wall.
Overview of the touch screen interface.
Descriptions of the various softkey functions available.
How to access and navigate through the phone's menus.
Procedures for signing into the phone for service access.
Activating the automatic phone locking mechanism.
Procedures to unlock the phone when it's locked.
Setting the display language for the phone interface.
Choosing a ringtone for incoming calls.
Managing contacts in personal and corporate directories.
Assigning speed dials to function keys.
Setting your availability status for contacts.
Managing handset, speaker, and headset usage.
Procedures for initiating phone calls.
How to accept incoming calls.
Procedures to decline incoming calls.
Handling calls when another is active.
Putting active calls on hold.
Methods for transferring calls to other parties.
Starting group calls.
Configuring BToE for PC integration.
Managing boss and admin phone functionalities.
Resolving power issues.
Resolving network connection problems.
Troubleshooting no incoming call alerts.
Sending logs for technical assistance.
General| Handset type | Wired handset |
|---|---|
| Product type | IP Phone |
| Product color | Black |
| Wi-Fi | No |
| Ethernet LAN | Yes |
| Security algorithms | 802.1x RADIUS, HTTPS, SRTP, SSL/TLS |
| Networking standards | IEEE 802.1p, IEEE 802.1x |
| 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 |
| Dual-Tone Multi-Frequency (DTMF) modes | SIP info |
| Lines quantity | 8 lines |
| Phonebook capacity | - entries |
| Number of VoIP accounts | - |
| RJ-9 ports quantity | 1 |
| USB 2.0 ports quantity | 2 |
| 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 |
| Volume control | Buttons |
| Number of programmable keys | 8 |
| Storage temperature (T-T) | -20 - 70 °C |
| Operating temperature (T-T) | 0 - 40 °C |
| Display diagonal | 5 \ |
| Display resolution | 1280 x 720 pixels |
| 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 |
Weight and Dimensions| Depth | 190 mm |
|---|---|
| Width | 234 mm |
| Weight | 1284 g |
| Height (max) | 195 mm |
| Height (min) | 170 mm |
| Package depth | 245 mm |
| Package width | 275 mm |
| Package height | 110 mm |
| Package weight | 1722 g |
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