AudioCodes C455HD User Manual

CHAPTER6 Performing Administrator-Related Operations
C455HD | Users & Administrator's Manual
6 Performing Administrator-Related Operations
Networkadministratorscan:
Updatephonefirmwaremanually(seeUpdatingPhoneFirmwareManuallyonpage91
Manuallyperformrecoveryoperations(seeManuallyPerformingRecoveryOperationson
page97
RemovedevicesfromIntunemanagement(seeRemovingDevicesfromIntuneManagementon
page98
UpdateMicrosoftTeamsdevicesremotely(seeUpdatingMicrosoftTeamsDevicesRemotelyon
page105
ManagephoneswiththeDeviceManager(seeManagingPhoneswiththeDeviceManageron
page106
Setting up Automatic Provisioning
PhonescanbedirectedtoaprovisioningserverusingDHCPOption160orAudioCodes'HTTPS
RedirectServer,toautomaticallyloadconfiguration(cfg)andfirmware(img)files.
Afterthephoneispoweredupandnetworkconnectivityestablished,itautomaticallyrequests
provisioninginformation;ifitdoesn'tgetviaDHCPOption160provisioningmethod,itsendsan
HTTPS  Request  to  the  Redirect  Server  which  responds  with  an  HTTPS  Redirect  Response 
containingtheURLoftheprovisioningserverwherethefirmwareandconfigurationfilesare
located.Whenthephonesuccessfullyconnectstotheprovisioningserver'sURL,anAutomatic
Updatemechanismbegins.
➢ To set up DHCP Option 160, use this syntax:
● <protocol>://<serverIPaddressorhostname>/<firmwarefilename>;<configuration
filename>
● <protocol>://<serverIPaddressorhostname>
● <protocol>://<serverIPaddressorhostname>/<firmwarefilename>
● <protocol>://<serverIPaddressorhostname>/;<configurationfilename>
Where<protocol>canbe"ftp","tftp","http"or"https"
➢ To set up AudioCodes' HTTPS Redirect Server, use this syntax:
● <protocol>://<serverIPaddressorhostname>
● <protocol>://<serverIPaddressorhostname>/<firmwarefilename>
● <protocol>://<serverIPaddressorhostname>/<firmwarefilename>;<configuration
filename>
● <protocol>://<serverIPaddressorhostname>/;<configurationfilename>
- 84 -

AudioCodes C455HD Specifications

General

Full duplex	Yes
Lines quantity	8 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
RJ-9 ports quantity	1
WAN connection type	RJ-45
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	2
Voice codecs	G.711Mu, G.711a, G.722, G.729A, G.729B, OPUS
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
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
Master (outer) case width	579 mm
Master (outer) case height	291 mm
Master (outer) case length	467 mm
Master (outer) case weight	14500 g
Display diagonal	5 \
Display resolution	1280 x 720 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	12 V
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Sustainability certificates	Federal Communications Commission (FCC), Trade Agreements Act (TAA)
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Volume control	Buttons
Number of programmable keys	8
Operating system version	9
Operating system installed	Android
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 40 °C

Weight and Dimensions

Depth	200 mm
Width	236 mm
Height	165.9 mm
Weight	988 g
Height (max)	195 mm
Height (min)	170 mm
Package depth	245 mm
Package width	280 mm
Package height	110 mm
Package weight	1548 g