AudioCodes C455HD Series Bedienungsanleitung
User's and Administrator's Manual
AudioCodes 400HD IP Phone Series
C455HD IP Phone
Microsoft Teams Application
Version 1.15
Notice C455HD | Users & Administrator's Manual
Notice
Information contained in this document is believed to be accurate and reliable at the time
of printing. However, due to ongoing product improvements and revisions, AudioCodes
cannot guarantee accuracy of printed material after the Date Published nor can it accept
responsibility for errors or omissions. Updates to this document can be downloaded
from https://www.audiocodes.com/library/technical-documents.
This document is subject to change without notice.
Date Published: February-07-2022
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PursuanttotheWEEEEUDirective,electronicandelectricalwastemustnotbedisposedofwith
unsortedwaste.Pleasecontactyourlocalrecyclingauthorityfordisposalofthisproduct.
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Related Documentation
Document Name
C455HDIPPhoneforMicrosoftTeamsReleaseNotes
C455HDIPPhoneforMicrosoftTeamsQuickGuide
DeviceManagerAdministrator'sManual
- ii -
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 6
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
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 33
Restoring the Phone to Default Settings 34
Performing a Hard Restore 35
Performing a Soft Restore 35
Recovery Mode 36
Locking and Unlocking the Phone 36
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Content C455HD | Users & Administrator's Manual
Automatic Lock 36
Unlock 36
4 Teams Application 38
Signing In 38
Multi-Cloud Sign-in 42
Remote Provisioning and Sign-in from Teams Admin Center 43
Getting Acquainted with the Phone Screen 47
Enabling Google Talkback 49
Opting in or out of Call Queues 50
Setting Status 50
Hot Desking 51
Changing Presence Status 52
Configuring Teams Application Settings 53
Setting up a Meeting 56
Using the People Screen 57
Accessing Voicemail 58
Using Audio Devices 58
Transferring Calls and Meetings across Devices 59
Signing Out 59
5 Performing Teams Call Operations 61
Making a Call 61
Redialing 62
Dialing a Missed Call 62
Select to Dial 62
Making an Emergency Call 62
Answering Calls 63
Ending an Established Call 64
Managing Calls 64
Parking a Call 64
Managing Teams Meetings 65
Using Live Captions 67
Raising a Hand During a Meeting 68
Hiding Names and Meeting Titles for Individual Devices 68
Transferring a Call to Frequent Contacts 68
Transferring a Call to Work Voicemail 68
Viewing and Playing Voicemail Messages 69
Rejecting an Incoming Call, Sending it Directly to Voicemail 69
Adjusting Volume 69
Adjusting Ring Volume 70
Adjusting Tones Volume 70
Adjusting Handset Volume 70
Adjusting Speaker Volume 70
Adjusting Headset Volume 70
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Content C455HD | Users & Administrator's Manual
Playing Incoming Call Ringing through USB Headset 71
Using the Phone as a USB Speaker 71
Viewing and Joining Meetings 71
Adding a Speed Dial 72
6 Performing Administrator-Related Operations 75
Updating Phone Firmware Manually 75
Downloading 802.1x Certificates 77
AudioCodes Teams IP Phone Utility 77
Manually Performing Recovery Operations 78
Removing Devices from Intune Management 79
Updating Microsoft Teams Devices Remotely 86
Applying Firmware to a Phone from a USB Disk 87
Managing Phones with the Device Manager 87
Configuring a Periodic Provisioning Cycle 88
Configuring TimeZone and Daylight Savings 89
Managing Devices with HTTPS 90
Supported Parameters 90
7 Troubleshooting 92
DSCP 92
Users 93
Network Administrators 94
Teams IP Phone Utility 94
Capturing the Phone Screen 96
Running Tcpdump 98
Getting Information about Phones 99
Remote Logging (Syslog) 101
Getting Diagnostics 102
Getting a Bug Report 105
Activating DSP Recording 106
Deactivating DSP Recording 107
SSH 108
Getting the Phone IP Address 108
Installing the Teams APK (or Any Other APK) using SSH 108
Microsoft Admin Center 109
Collecting Logs 109
Getting Company Portal Logs 111
Getting Logs via the Phone 111
Getting Logs using UUID 112
Getting Audio Debug Recording Logs 114
Collecting Media Logs (*.blog) from the Phone 115
Capturing Traffic Using 'rpcapd' 115
Port Mirroring Network Monitoring 116
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CHAPTER1 Overview C455HD | Users & Administrator's Manual
1 Overview
TheAudioCodesC455HDIPphoneisahigh-end,nativeMicrosoftTeamsexecutiveIPphone
withalarge,color5”touchscreen,integratedBluetoothandWi-Fi,andoptionalconnectivityto
acolortouchscreenExpansionModule.
Featurehighlights:
■Fullduplexspeakerphoneandheadsetconnectivity
■Graphical5”colorcapacitivetouchscreen(1280X720resolution)
■Multi-lingualsupport
■DualGbEsupport
■PoEorexternalpowersupply
■USBportforUSBheadset
■ApplicabletopartnumberC455HD-DBW:
●IntegratedBluetoothandWi-Fi(contactyourlocalAudioCodesrepresentativeformore
informationaboutregionalavailabilityofWi-Fi/Bluetooth)
●OptionalExpansionModulesupportwithagraphical5”colorcapacitivetouchscreen,
480X854resolution(theExpansionModuleispurchasedseparately)
SeealsohereaguidetoAudioCodesdevices.
Seealsoherea'Howto'presentation,includingavideoclip.
Seealsohereanadvanced'Howto'videoblog.
Specifications
Thefollowingtablesummarizesthephone'ssoftwarespecifications.
Table 1-1: Software Specifications
Feature Details
Media
Processing
■VoiceCoders:G.711,G.729,G.722,SILK,Opus
■AcousticEchoCancelation:G.168-2004compliant,64-msectail
length
■Ambientnoiseblock
■AdaptiveJitterBuffer
■VoiceActivityDetection
■ComfortNoiseGeneration
■PacketLostConcealment
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CHAPTER1 Overview C455HD | Users & Administrator's Manual
Feature Details
■RTP/RTCPPacketization(RFC3550,RFC3551),SRTP(RFC3711)
Microsoft
Teamsphones
featureset
■Authentication(Signinwithusercredentials;Signinusing
PC/Smartphone;ModernAuthentication;Phonelock/unlock)
■Calling(Incoming/OutgoingP2Pcalls;In-callcontrolsviaUI(Mute,
hold/resume,transfer,endcall);PSTNcalls;VisualVoicemail;911
support
■CalendarandPresence(roadmapfeature)(CalendarAccessand
MeetingDetails;PresenceIntegration;ExchangeCalendar
Integration;ContactPictureIntegration;CorporateDirectory
Access)
■Meetings(roadmapfeature)(One-clickJoinforMeetings;Join
SkypeforBusinessmeetings;MeetingCallcontrols[Mute/unmute,
hold/resume,hangup,add/removeparticipant];MeetingDetails.
SeealsohereforrelatedMicrosoftdocumentation.
Configuration
and
Management
■Teamsadmincenter(TAC)
■OVOC/DeviceManager
Debugging
Tools
■AudioCodes'TeamsIPPhoneUtility(seeTeamsIPPhoneUtilityon
page94)
■LoguploadtoMicrosoftserver(certificationfor3rdpartySkypefor
Businessclients)
■RemoteloggingviaSyslog
■SSHAccess
■Capturingthephonescreen
■TCPdump
■CompanyPortal(Intune)logs
■AudioDebugrecordinglogs
■Medialogs(*.blog)
■Portmirroringnetworkmonitoring
■RemotePacketCapturenetworksnifferapplication
Localization
Support
■Multi-lingualsupport;thelanguagepacklistisnotyetfinalandis
subjecttomodification.
Hardware ■Five-inchcolorcapacitivetouchscreen,1280x720resolution,with
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CHAPTER1 Overview C455HD | Users & Administrator's Manual
Feature Details
anintuitiveuserinterface.
■Wiredconnectivity:
✔TwoRJ-45[GigabitEthernet(GbE)](10/100/1000BaseT
Ethernet)ports:LANandPCport
✔USBportforUSBheadset
C455HDwithDBWsuffixflavor:
●White USB port-hostportforUSBheadset
●Black USB port-defaultportbutcanbeconfiguredtohost
port.Toconfiguredevice/hostport:
setup_usbport2_mode.sh host(fromdevicetohost)
setup_usbport2_mode.sh device(fromhosttodevice)
Itcanalternativelybeconfiguredbysettingtheconfiguration
fileparameter'management/usbport2/mode'tothevalueof
USB_HOST_MODE/USB_DEVICE_MODE
✔RJ-11interface
✔SurvivableBranchAppliance(SBA)
■Wirelessconnectivity(appliestoPNsTEAMS-C455HD-DBWand
TEAMS-C455HDPS-DBW):
✔Dualband2.4GHz/5GHz,802.11b/g/nWi-Fisupport
✔Wi-Fisupportedprotocols:WEP,WPA-PSK/WPA2-PSKand
WPA/WPA2Enterprise(802.1X)PEAPonly
■IntegratedoptionalBluetoothsupportfor(appliestoPNsTEAMS-
C455HD-DBWandTEAMS-C455HDPS-DBW):
✔Bluetoothheadsets
✔MicrosoftBetterTogetherfordevicepairing
■BluetoothWidebandSpeech(WBS)supportedforheadsets
■ExpansionModule(optional)
■Mounting:
✔Wallanddesktopmountingoptions
✔Oneanglefordesktopmount,anotherangleforwallmount
■Power:
✔DCjackadapter12V
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CHAPTER1 Overview C455HD | Users & Administrator's Manual
Feature Details
✔PowersupplyAC100~240V
✔PoEClass2:IEEE802.3af(optional)
■Keys:
✔VOICEMAILmessagehotkey(includingLED)
✔4-waynavigationbuttonwithOKkey
✔MENU
✔HOLD
✔MUTE(includingLED)
✔TRANSFER
✔VOLUMEcontrolkey
✔HEADSET(includingLED)
✔SPEAKER(includingLED)
✔BACK
✔CONTACTS
✔ACkey–forfutureuse–currentlyusedashomekey
Allowing URLs, Ports (Security)
ThissectionshowsnetworkadministratorswhichURLs/PortstoallowwhendeployingTeams
phones(security).
Fromthedevicepointofview,thefollowingtablesummariestheportsthephoneuses.See
alsoMicrosoft'sguidetotheportsthephoneuses.
Table 1-2: URLs / Ports to Allow when Deploying Teams Phones (Security)
Server Role Service Name Port Protocol Notes
DNSServer All 53 DNS -
AudioCodes
Device
Manager
AudioCodes
DM
443 HTTPS AudioCodesdevice
managementserver
AudioCodes
Redirect
service
AudioCodes
DM
443 HTTPS AudioCodesredirectservice
redirect.audiocodes.com
-4-
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