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

WEEE EU Directive

PursuanttotheWEEEEUDirective,electronicandelectricalwastemustnotbedisposedofwith

unsortedwaste.Pleasecontactyourlocalrecyclingauthorityfordisposalofthisproduct.

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Customer  technical  support  and  services  are  provided  by  AudioCodes  or  by  an  authorized 

AudioCodes  Service  Partner.  For  more  information  on  how  to  buy  technical  support  for 

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Stay in the Loop with AudioCodes

Related Documentation

Document Name

C455HDIPPhoneforMicrosoftTeamsReleaseNotes

C455HDIPPhoneforMicrosoftTeamsQuickGuide

DeviceManagerAdministrator'sManual

- ii -

Notice C455HD | Users & Administrator's Manual

Document Name

DeviceManagerDeploymentGuide

https://docs.microsoft.com/en-us/MicrosoftTeams/phones-for-teams



- iii -

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

-v-

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

- vi -

CHAPTER1 Overview C455HD | Users & Administrator's Manual

1 Overview

TheAudioCodesC455HDIPphoneisahigh-end,nativeMicrosoftTeamsexecutiveIPphone

withalarge,color5”touchscreen,integratedBluetoothandWi-Fi,andoptionalconnectivityto

acolortouchscreenExpansionModule.

Featurehighlights:

■Fullduplexspeakerphoneandheadsetconnectivity

■Graphical5”colorcapacitivetouchscreen(1280X720resolution)

■Multi-lingualsupport

■DualGbEsupport

■PoEorexternalpowersupply

■USBportforUSBheadset

■ApplicabletopartnumberC455HD-DBW:

●IntegratedBluetoothandWi-Fi(contactyourlocalAudioCodesrepresentativeformore

informationaboutregionalavailabilityofWi-Fi/Bluetooth)

●OptionalExpansionModulesupportwithagraphical5”colorcapacitivetouchscreen,

480X854resolution(theExpansionModuleispurchasedseparately)

SeealsohereaguidetoAudioCodesdevices.

Seealsoherea'Howto'presentation,includingavideoclip.

Seealsohereanadvanced'Howto'videoblog.

Specifications

Thefollowingtablesummarizesthephone'ssoftwarespecifications.

Table 1-1: Software Specifications

Feature Details

Media

Processing

■VoiceCoders:G.711,G.729,G.722,SILK,Opus

■AcousticEchoCancelation:G.168-2004compliant,64-msectail

length

■Ambientnoiseblock

■AdaptiveJitterBuffer

■VoiceActivityDetection

■ComfortNoiseGeneration

■PacketLostConcealment

-1-

CHAPTER1 Overview C455HD | Users & Administrator's Manual

Feature Details

■RTP/RTCPPacketization(RFC3550,RFC3551),SRTP(RFC3711)

Microsoft

Teamsphones

featureset

■Authentication(Signinwithusercredentials;Signinusing

PC/Smartphone;ModernAuthentication;Phonelock/unlock)

■Calling(Incoming/OutgoingP2Pcalls;In-callcontrolsviaUI(Mute,

hold/resume,transfer,endcall);PSTNcalls;VisualVoicemail;911

support

■CalendarandPresence(roadmapfeature)(CalendarAccessand

MeetingDetails;PresenceIntegration;ExchangeCalendar

Integration;ContactPictureIntegration;CorporateDirectory

Access)

■Meetings(roadmapfeature)(One-clickJoinforMeetings;Join

SkypeforBusinessmeetings;MeetingCallcontrols[Mute/unmute,

hold/resume,hangup,add/removeparticipant];MeetingDetails.

SeealsohereforrelatedMicrosoftdocumentation.

Configuration

and

Management

■Teamsadmincenter(TAC)

■OVOC/DeviceManager

Debugging

Tools

■AudioCodes'TeamsIPPhoneUtility(seeTeamsIPPhoneUtilityon

page94)

■LoguploadtoMicrosoftserver(certificationfor3rdpartySkypefor

Businessclients)

■RemoteloggingviaSyslog

■SSHAccess

■Capturingthephonescreen

■TCPdump

■CompanyPortal(Intune)logs

■AudioDebugrecordinglogs

■Medialogs(*.blog)

■Portmirroringnetworkmonitoring

■RemotePacketCapturenetworksnifferapplication

Localization

Support

■Multi-lingualsupport;thelanguagepacklistisnotyetfinalandis

subjecttomodification.

Hardware ■Five-inchcolorcapacitivetouchscreen,1280x720resolution,with

-2-

CHAPTER1 Overview C455HD | Users & Administrator's Manual

Feature Details

anintuitiveuserinterface.

■Wiredconnectivity:

✔TwoRJ-45[GigabitEthernet(GbE)](10/100/1000BaseT

Ethernet)ports:LANandPCport

✔USBportforUSBheadset

C455HDwithDBWsuffixflavor:

●White USB port-hostportforUSBheadset

●Black USB port-defaultportbutcanbeconfiguredtohost

port.Toconfiguredevice/hostport:

setup_usbport2_mode.sh host(fromdevicetohost)

setup_usbport2_mode.sh device(fromhosttodevice)

Itcanalternativelybeconfiguredbysettingtheconfiguration

fileparameter'management/usbport2/mode'tothevalueof

USB_HOST_MODE/USB_DEVICE_MODE

✔RJ-11interface

✔SurvivableBranchAppliance(SBA)

■Wirelessconnectivity(appliestoPNsTEAMS-C455HD-DBWand

TEAMS-C455HDPS-DBW):

✔Dualband2.4GHz/5GHz,802.11b/g/nWi-Fisupport

✔Wi-Fisupportedprotocols:WEP,WPA-PSK/WPA2-PSKand

WPA/WPA2Enterprise(802.1X)PEAPonly

■IntegratedoptionalBluetoothsupportfor(appliestoPNsTEAMS-

C455HD-DBWandTEAMS-C455HDPS-DBW):

✔Bluetoothheadsets

✔MicrosoftBetterTogetherfordevicepairing

■BluetoothWidebandSpeech(WBS)supportedforheadsets

■ExpansionModule(optional)

■Mounting:

✔Wallanddesktopmountingoptions

✔Oneanglefordesktopmount,anotherangleforwallmount

■Power:

✔DCjackadapter12V

-3-

CHAPTER1 Overview C455HD | Users & Administrator's Manual

Feature Details

✔PowersupplyAC100~240V

✔PoEClass2:IEEE802.3af(optional)

■Keys:

✔VOICEMAILmessagehotkey(includingLED)

✔4-waynavigationbuttonwithOKkey

✔MENU

✔HOLD

✔MUTE(includingLED)

✔TRANSFER

✔VOLUMEcontrolkey

✔HEADSET(includingLED)

✔SPEAKER(includingLED)

✔BACK

✔CONTACTS

✔ACkey–forfutureuse–currentlyusedashomekey

Allowing URLs, Ports (Security)

ThissectionshowsnetworkadministratorswhichURLs/PortstoallowwhendeployingTeams

phones(security).

Fromthedevicepointofview,thefollowingtablesummariestheportsthephoneuses.See

alsoMicrosoft'sguidetotheportsthephoneuses.

Table 1-2: URLs / Ports to Allow when Deploying Teams Phones (Security)

Server Role Service Name Port Protocol Notes

DNSServer All 53 DNS -

AudioCodes

Device

Manager

AudioCodes

443 HTTPS AudioCodesdevice

managementserver

AudioCodes

Redirect

service

AudioCodes

443 HTTPS AudioCodesredirectservice

redirect.audiocodes.com

-4-

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