AudioCodes 400HD Series Bedienungsanleitung

User's and Administrator's Manual

AudioCodes 400HD IP Phone Series

C448HD | C450HD IP

Phones

Microsoft Teams Application

Version 1.3.51



Notice C448HD and C450HD | 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: May-27-2020

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

Customer Support

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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Related Documentation

Document Name

C450HDIPPhoneforMicrosoftTeamsQuickGuide

C450HDIPPhoneforMicrosoftTeamsReleaseNotes

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



- ii -

Content C448HD and C450HD | Users & Administrator's Manual

Table of Contents

1 Overview 1

Specifications 1

2 Setting up the Phone 5

Unpacking 5

Device Description 6

Front View 6

Rear View 9

Cabling 10

Mounting the Phone 11

Desktop Mounting 11

Routing the Handset Cable 12

Wall Mounting 12

3 Starting up 14

Configuring Device Settings 14

Restoring the Phone to Default Settings 32

Performing a Hard Restore 32

Performing a Soft Restore 32

Locking and Unlocking the Phone 33

Automatic Lock 34

Smart Unlock 34

4 Teams Application 36

Signing In 36

Getting Acquainted with the Phone Screen 38

Changing Presence Status 40

Configuring Teams Application Settings 42

Setting up a Meeting 45

Accessing Voicemail 46

Using Audio Devices 47

Signing Out 47

5 Performing Basic Operations 49

Making a Call 49

Redialing 51

Dialing a Missed Call 51

Making an Emergency Call 51

Answering Calls 52

Ending an Established Call 54

Managing Calls 54

Parking a Call 56

Initiating a Teams Meeting 56

Viewing and Playing Voicemail Messages 58

- iii -

Content C448HD and C450HD | Users & Administrator's Manual

Rejecting an Incoming Call, Sending it Directly to Voicemail 60

Adjusting Volume 60

Adjusting Ring Volume 60

Adjusting Tones Volume 60

Adjusting Handset Volume 61

Adjusting Speaker Volume 61

Adjusting Headset Volume 61

Managing Meetings 62

Better Together over Bluetooth 63

6 Updating C450HD Phone Firmware Manually 65

7 Troubleshooting 66

Users 66

Network Administrators 66

Collecting Logs 66

Remote Logging 68

Diagnostic Data 69

SSH 71

Capturing the Phone Screen 71

Running the tcpdump Tool 72

Activating DSP Recording 72

Deactivating DSP Recording 72

Getting the Phone IP Address 73

Getting Information about Phones 73

Installing the Teams APK (or Any Other APK) using SSH 74

Getting Company Portal Logs 74

Getting Audio Debug Recording Logs 76

Collecting Media Logs (*.blog) from the Phone 76

- iv -

CHAPTER1 Overview C448HD and C450HD | Users & Administrator's Manual

1 Overview

The  AudioCodes  C448HD  and  C450HD  IP  phones  are  native  Microsoft  Teams  high- end 

executivebusiness phones with a largecolortouch screen and fullUC integration  for the

NativeMicrosoftTeamsOnlinemarket.

TheMicrosoftTeamsC448HDandC450HDphonesareequippedwitha5-inchcolorcapacitive

touchscreenof1280x720resolution.

The C448HD phone is identical to the C450HD phone from the user's point of view,

with the exception of:

●The C448HD phone does not allow the 'Switch to Skype' feature (in the Admin

debugging tab); the C450HD allows this feature.

●The C448HD phone does not feature Bluetooth and Wi-Fi; the C450HD phone

features optional integrated Wi-Fi and Bluetooth support (contact your local

AudioCodes representative for more information about regional availability).

●The C448HD phone features one USB port; the C450HD phone features two.

●The C448HD phone does not feature an option to add the Expansion Module; the

C450HD phone features this option.

ThephonescanbemanagedbytheMicrosoftTeams&SkypeforBusinessAdminCenter.For

moreinformation,seehttps://docs.microsoft.com/en-us/MicrosoftTeams/phones-for-teams.

ThephonesfeaturetheoptiontobeusedasaMicrosoftSkypeforBusinessIPphone,offered

as part of AudioCodes’ Managed IPPhones solution which defines theIPphoneas an IT-

managedentityanddeliversuniqueandcompletelifecyclemanagementofend-userdesktop

devices.Asingle-clickswitchoverbetweenMicrosoftTeamswithnativeclientexperienceand

SkypeforBusinessissupported.

Specifications

The following tablesummarizes  the software specifications  ofthe C448HD and  C450HD IP

PhonesforMicrosoftTeams.

Table 1-1: C448HD and C450HD IP Phones for Microsoft Teams 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

■AdaptiveJitterBuffer

■VoiceActivityDetection

■ComfortNoiseGeneration

■PacketLostConcealment

- 1 -

CHAPTER1 Overview C448HD and C450HD | 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(CalendarAccessandMeetingDetails;

PresenceIntegration;ExchangeCalendarIntegration;ContactPicture

Integration;CorporateDirectoryAccess)

■Meetings(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

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

teams.

Configuration

/

Management

■MicrosoftTeams&SkypeforBusinessAdminCenter(Provisioning

andLogging)

Debugging

Tools

■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)

Localization

Support

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

subjecttomodification.

C448HDand

C450HD

Hardware

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

intuitiveuserinterface.

■Wiredconnectivity:

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

portsforWANandLAN

- 2 -

CHAPTER1 Overview C448HD and C450HD | Users & Administrator's Manual

Feature Details

✔RJ-9port(jack)forheadset

✔RJ-9port(jack)forhandset

✔2xUSBportsforheadsetsupport(C450HD);1xUSBportfor

headsetsupport(C448HD)

✔RJ-11interface

■Wirelessconnectivity(C450HDonly):

✔Singleband2.4GHz,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(C450HDonly)(Currently

supportedataBetalevel)

■ExpansionModule(C450HDonly)

■Mounting:

✔Wallanddesktopmountingoptions

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

■Power:

✔DCjackadapter12V

✔PowersupplyAC100~240V

✔PoEClass3:IEEE802.3af(optional)

■Keys:

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

✔4-waynavigationbuttonwithOKkey

✔MENU

✔REDIAL

✔HOLD

✔MUTE(includingLED)

✔TRANSFER

✔VOLUMEcontrolkey

✔HEADSET(includingLED)

✔SPEAKER(includingLED)

✔BACK(the‘x’key)

- 3 -

CHAPTER1 Overview C448HD and C450HD | Users & Administrator's Manual

Feature Details

✔CONTACTS(notyetsupportedinTeams)

- 4 -

CHAPTER2 Setting up the Phone C448HD and C450HD | Users & Administrator's Manual

2 Setting up the Phone

Unpacking

Whenunpacking,makesurethefollowingitemsarepresentandundamaged:

Phone / Stand Handset / Cord



Cat 5e Ethernet Cable AC Power Adapter (Optional)

If  anything  appears  to  be  missing  or  broken,  contact  the  distributor  from  whom  you 

purchasedthephoneforassistance.

- 5 -

CHAPTER2 Setting up the Phone C448HD and C450HD | Users & Administrator's Manual

Device Description

Usethenextgraphicstoidentifyandfamiliarizeyourselfwiththedevice'shardwarefunctions.

Front View

Thefrontviewofthephoneisshowninthefigureanddescribedinthetable.

Figure 2-1: Front View

Table 2-1: Font View Description

Item # Label/Name Description

1RingLED Indicatesphonestatus:

■Green:Idlestate

■Flashingblue:Incomingcall(ringing)

- 6 -

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