How to Set Up Visual Voicemail on au and SoftBank Lines
Visual voicemail lets you manage voice messages from a phone screen instead of calling a voicemail number and listening to every message in sequence. Depending on the carrier and device, you may be able to see caller information, message duration, and a list of recordings, then play or delete individual messages.
On Japanese au and SoftBank lines, the exact experience depends on your contract, handset, operating system, and voicemail option. An iPhone may display carrier voicemail inside the Phone app, while an Android phone may use a carrier application or a Phone app feature. Some plans provide ordinary voicemail access but do not include visual voicemail.
The most reliable setup begins with checking whether your line includes the required voicemail service. If the visual mailbox does not appear after activation, the issue may be related to the carrier option rather than a fault with the phone.
Check Compatibility Before Changing Settings
Start by identifying the phone model and operating system. On an iPhone, open Settings and check General > About for the model and iOS version. On Android, open Settings > About phone and note the device name, Android version, and software version. Menu names can vary by manufacturer.
You should also confirm that the line is using au, UQ mobile, SoftBank, or Y!mobile and determine whether the phone was purchased through the carrier or brought from another provider. A device that supports visual voicemail overseas may not support the same carrier integration on a Japanese network.
Visual voicemail should be distinguished from Apple’s Live Voicemail. Live Voicemail can display a real-time transcription while someone is leaving a message, when supported by the iPhone and region. Carrier visual voicemail stores messages in a mailbox and presents them as a list. These are related conveniences, but activating one does not always activate the other.
Activate the Required Carrier Service
For au, check the current voicemail options in My au, the au customer support app, or an au shop. The relevant service may be listed as 留守番電話サービス, お留守番サービスEX, or a related enhanced voicemail option, depending on the contract and device. Some au plans include voicemail functions, while others require an additional option.
For SoftBank, review the voicemail settings in My SoftBank or the SoftBank support app. SoftBank may distinguish between standard 留守番電話サービス and 留守番電話プラス, with enhanced functions and storage conditions varying by plan. Y!mobile customers should check Y!mobile-specific terms rather than assuming that SoftBank settings apply unchanged.
Activation may require a short delay. Restart the phone, connect to the mobile network, and test the line by calling it from another phone without answering. If the caller reaches a greeting and can leave a message, the carrier side is active even if the visual mailbox has not yet appeared.
Set Up Visual Voicemail On iPhone
After the carrier option is active, open the Phone app and select Voicemail. On some iOS versions, the Voicemail tab appears at the bottom of the screen. On newer versions, voicemail-related controls may be grouped differently under the Phone settings. If prompted, create a voicemail password and record a personal greeting.
When the service is correctly provisioned, new messages should appear in the voicemail list with caller details, date, and length. Tap a message to play it, move the playback position, share the audio when available, or delete it. Deleted messages may remain temporarily in a deleted area, so remove them again if you need to free mailbox space.
If the Voicemail tab shows only a button for calling voicemail, the carrier may have enabled ordinary voicemail without visual integration. Confirm the eligible option with au or SoftBank, then restart the iPhone after any change. Updating iOS can help with compatibility, but an update cannot add a carrier feature that is excluded from the contract.
Configure Android And Carrier Apps
Android visual voicemail is less uniform. On supported devices, open the Phone app, select the menu, and look for Settings > Voicemail or Visual voicemail. If the option is available, enable notifications, choose whether messages download automatically, and set a voicemail PIN when requested.
Some Japanese Android models use a carrier application instead of the standard Phone app. Search the app list for an au, SoftBank, or Y!mobile voicemail application and check the carrier’s support instructions before installing a third-party voicemail tool. A random voicemail app may request access to calls, contacts, or recordings without offering reliable carrier integration.
If the Phone app displays “Visual voicemail unavailable,” first confirm mobile data. Some visual voicemail systems use carrier data services even when Wi-Fi is connected. Turn Wi-Fi off briefly, open the voicemail screen, and test again. Also check that background data and notifications are allowed for the Phone or carrier app.
| Item | au | SoftBank and Y!mobile |
|---|---|---|
| Service check | Review voicemail eligibility in My au or with au support | Review voicemail eligibility in My SoftBank or Y!mobile support |
| iPhone access | Usually through the Phone app when the line and device are supported | Usually through the Phone app when the required voicemail option is active |
| Android access | Phone app or carrier-supported application, depending on model | Phone app or carrier-supported application, depending on model |
| Greeting and PIN | Set during first access or from voicemail settings | Set during first access or from voicemail settings |
| If the list is missing | Confirm the option, restart, and test on mobile data | Confirm the option, restart, and test on mobile data |
Record A Clear Greeting And Manage Messages
A short greeting makes the feature useful for both personal and business calls. State your name or organization, explain that you cannot answer, and provide an alternative contact method only if it is appropriate. Avoid including sensitive information such as a full address, internal extension list, or details about when the premises are empty.
After saving the greeting, call the number from another line and leave a test message. Check whether the notification arrives, whether the recording plays correctly, and whether the caller can end the message without unusual prompts. This test also confirms that call forwarding and voicemail pickup timing are working as expected.
Review storage regularly. Visual voicemail does not necessarily mean unlimited storage, and older messages may be removed after a retention period. Save important recordings to a secure location only when you have a legitimate reason and permission to retain them. For company phones, establish a policy for access, deletion, and handling recordings that contain customer information.
A voicemail alert that fails to clear may be caused by an unread message, a delayed carrier notification, or a temporary network registration issue. Open the mailbox, listen to or delete the message, then restart the phone. If the badge remains, update carrier settings when prompted or contact support.
Troubleshoot Common Setup Problems
When visual voicemail does not appear, check the basics in order. Confirm that the phone has signal, mobile data is enabled, the correct SIM or eSIM is active, and the line is not in airplane mode. Dual-SIM phones may route calls through a different line than the one with voicemail, so verify the selected voice line.
A recent number transfer, plan change, SIM replacement, or device upgrade can temporarily interrupt voicemail provisioning. The phone may still make calls while carrier features are being updated. Ask the carrier to confirm visual voicemail provisioning on the specific telephone number, not just the account in general.
If messages appear late, disable low-power restrictions for the relevant Phone or carrier app and allow notifications. On Android, battery optimization can stop background synchronization. On iPhone, check Focus modes and notification settings so voicemail alerts are not being silenced.
For practical connectivity guidance when mobile data is part of a temporary workaround, NSC’s internet sharing guide explains how to share a smartphone connection. Tethering can help with setup checks, but it does not replace carrier provisioning and should not be used as the only test of voicemail service.
Recommendations For A Reliable Setup
- Confirm the eligible au, SoftBank, or Y!mobile voicemail option before changing handset settings.
- Use the carrier’s official support app, website, or shop when a visual mailbox is missing.
- Test the service from a separate phone and verify both message playback and notifications.
- Keep the voicemail greeting brief and avoid confidential personal or business details.
- Review stored recordings regularly and delete messages that are no longer needed.
Visual voicemail is usually straightforward once the carrier service, handset, and account are aligned. If the setup remains unclear, NSC’s certified staff can check the device, explain the available plan options, and assist with activation or troubleshooting at authorized shops across Fukushima and Miyagi. Businesses can also receive support for managed mobile use and related ICT needs; details about joining the team and its service culture are available through NSC career information. Visit an NSC shop with the handset and the account holder’s identification to receive practical, line-specific assistance.