Aastra Telecom 41-001286-00 manual Issue Causes Solution There is no audio when I make

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Issue (Continued)

Causes (Continued)

Solution (Continued)

 

 

 

 

 

There is no audio when I make

The router blocks audio.

Use port forwarding. Check your router’s

 

Internet calls.

 

user manual to see how to configure port

 

 

 

forwarding.

 

I cannot make landline calls.

The landline cable is not connected.

Check that the landline cable between

 

 

 

the Line port on the MBU and the

 

 

 

telephone wall outlet is connected

 

 

 

properly.

 

 

The landline is out of order.

Contact your landline provider.

 

 

 

 

 

I cannot receive landline calls.

The country setting is wrong.

Check that you have chosen the country

 

 

 

that you are in. Open the System

 

 

 

settings menu, choose Country

 

 

 

selection, and then choose the country

 

 

 

that you are in.

 

I cannot make Internet calls, the

The configuration of the phone is

Check that you have configured your

 

VoIP indicator on the MBU is not

not complete.

phone properly. See Configuring Your

 

lit, and the right status indicator

 

Phone for First-Time Use on page 22.

 

in the upper left corner of the

 

For more information, contact your

 

display is black.

 

Internet Telephony Service Provider or

 

 

 

your System Administrator.

 

 

The MBU has not been reset after

Reset the MBU and allow the MBU 2

 

 

you saved the configuration.

minutes to log in at your Internet

 

 

 

Telephony Service Provider.

 

 

The router uses port forwarding.

Check that you have configured your

 

 

 

router so that it always assigns the same

 

 

 

IP address to your phone’s MAC address

 

 

 

when using port forwarding. Otherwise

 

 

 

incoming traffic is probably not forwarded

 

 

 

to your phone. For more information,

 

 

 

check your router’s manual.

 

 

The router blocks Internet

Use port forwarding. The default SIP port

 

 

telephony.

is 5060, and the default RTP port is

 

 

 

5004. Ensure that your router always

 

 

 

assigns the same IP address to your

 

 

 

phone when using port forwarding.

 

 

 

For more information, check your

 

 

 

router’s manual.

 

 

 

 

 

 

The router firmware needs updating.

Check your router’s user manual to see

 

 

 

how to update the firmware.

 

When I make Internet calls, the

There is too much simultaneous

a) Reduce the amount of traffic on your

 

sound quality is poor.

data traffic on your broadband

broadband connection.

 

 

connection.

b) Sign up for a Quality of Service

Troubleshooting

 

 

agreement with your broadband

 

 

provider.

 

 

c) Order a connection with higher speed

 

 

 

from your broadband provider.

 

 

 

 

 

 

Your Internet Telephony Service

Contact your Internet Telephony Service

 

 

Provider’s Quality of Service is

Provider regarding ensured voice

 

 

based on a “best efforts” rather than

prioritization across the network.

 

 

a guaranteed voice priority method.

 

 

Aastra MBU 400 User Guide

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Contents MBU 400TM Page Table of Contents Table of ContentsManaging Calls Important Safety Instructions Important Safety InstructionsImportantes mesures de sécurité Software License Agreement Software License AgreementFCC Information FCC InformationConsumer Information US Service CenterApplicable for Coin or Pay Phone Only Safety Information Safety InformationFor countries outside the European Union Battery Disposal InformationPage About This Guide About This GuideDocumentation Introduction FeaturesMBU Features Call and Telephony FeaturesAastra 420d Handset Features Other MBU FeaturesDisplay Other Handset Features Audio FeaturesRequirements Installation and SetupGetting Started Getting StartedMBU Gateway Call Registering the 420d HandsetKeys Key Description 420d Handset Key DescriptionsIP address of your phone system MBU 400 IP Address and System StatusConfiguring Your Phone for First-Time Use StartedGetting Specify the Domain and the SIP proxy Configuring the Phone Using the HandsetGetting Started Handset Idle Screen Using the 420d HandsetUsing the 420d Handset Idle Mode OptionsMain Menu Handset Main MenuUsing the Speakerphone Using the Volume ControlChanging the PIN Code for VoIP Settings Changing the Access CodeLocking/Unlocking the Keypad Changing the Access Code on the Handset Changing the Access Code on the GatewayChanging the Handset Name Entering Text, Numbers, and SymbolsCustomizing Your Phone Customizing Your PhoneInput Symbols Text Input ModesInput Characters Reaching the Language List Directly Setting Time and DateAutomatic Time/Date Settings Specifying a Language on the HandsetSetting Time Manually Setting Date ManuallyChanging Time Format Changing Time Zone Changing Date FormatSetting Daylight Saving Time DST Specifying the Primary Line for Outgoing CallsChoosing VoIP or Landline Specifying Call Groups Changing the Display ContrastChoosing SIP Account Setting Do Not Disturb Setting Call WaitingSetting Audio Resetting the Handset Changing the Ringer VolumeChanging the Ringer Melody Changing the Keypad Sound Changing the Message ToneEnabling/Disabling Silent Mode Setting Your Phone to VibrateChanging Advisory Tones Changing Emergency Line Settings Making a VoIP Call over the Internet Making and Answering CallsMaking and Answering Calls VoIP CallsLandline Calls Intercom CallsMaking a Landline Call Calling a Contact on the Primary Line Calling from the Contacts ListMaking an Intercom Call Calling All HandsetsCalling from the Call Log Calling a Contact on a Secondary LineCalling from the Call Log on the Primary Line Redialing on a Secondary Line Calling Using RedialCalling from the Call Log on a Secondary Line Redialing on a Primary LineAnswering Calls Calling Using SpeeddialCaller ID Any Key Answer ModeMaking Emergency Calls Calling with a Call on Hold Handling CallsHandling Calls Placing a Call on HoldTransferring a Call Muting/Unmuting a CallSwapping Calls Conferencing CallsTransferring to a Contacts List Number Transferring CallsTransferring to another Handset Transferring to a VoIP or LandlineEnding Calls Managing Calls Managing CallsContacts List Editing a Contact Adding a ContactChanging the Default Number for a Contact Deleting a ContactDeleting All Contacts Creating a Speeddial for a Contact Groups of ContactsCreating a Contact Group Call Log Viewing Entries in the Call LogAdding a Contact to a Group Voicemail Manually Registering/De-registering a Handset Additional FeaturesAdditional Features Resetting the MBUChanging Internet Settings Updating the MBU 400 System FirmwareUpdating the Firmware Troubleshooting TroubleshootingIssue Causes Solution There is no audio when I make Issue Causes Solution Cannot make Internet calls, but it After Warranty Service Limited WarrantyLimited Warranty Warranty Repair ServicesPage Any key answer mode Index SIP Page
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