AudioCodes C455HD User Manual

Content
C455HD | Users & Administrator's Manual
Table of Contents
1 Overview 1
Specifications 1
Allowing URLs, Ports (Security) 4
Security Guidelines for Android-based Native Teams Devices 5
Android-Level Security Hardening 5
Google Play Services 6
Running Android in Kiosk Mode 6
Screen Lock 7
AudioCodes Private Key 7
Android Debug Bridge (ADB) 7
App Signing 7
Web Browser 7
Remote Configuration Management 7
AudioCodes Device Manager Validation 8
Sandboxing 8
Device File System 8
Keystore 8
Device Certificate 8
Data Protection 9
Debugging Interface 9
SSH Access: Reduced File System Privileges 9
Android Security Updates 9
AudioCodes Root CA Certificate 9
2 Setting up the Phone 12
Unpacking 12
Device Description 13
Front View 13
Rear View 16
Cabling 17
Mounting the Phone 17
Desktop Mounting 17
Wall Mounting 17
Installing the Expansion Module (Sidecar) 18
Before Using AudioCodes Devices 19
3 Starting up 20
Configuring Device Settings 20
Configuring Wi-Fi 34
Connecting to an Available Wi-Fi Network 34
Manually Connecting to a Wi-Fi Network 35
Restoring the Phone to Default Settings 38
Performing a Hard Restore 39
- iv -

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