How to Fix Voicemail Not Working on Your Phone

Published 2026-10-16 · Marion Phone Repair

Your voicemail is not working correctly. Callers say they cannot leave a message because the voicemail box is full, does not pick up, or gives an error. Or voicemails are being left but you never receive notifications that a new message is waiting. Or you try to check your voicemail and get an error, a busy signal, or a message that the mailbox has not been set up even though you set it up previously. Voicemail problems are caused by a full mailbox, incorrect voicemail settings, a carrier provisioning issue, call forwarding misconfiguration, or a network problem that prevents the voicemail system from communicating with your phone.

Check if voicemail is set up

Android

1. Open the Phone app and long-press the 1 key (speed dial to voicemail on most carriers). If you hear a greeting and a prompt to enter your PIN, voicemail is set up and accessible
2. If you hear a message saying the mailbox has not been set up, follow the automated prompts to create a PIN and record a greeting. The carrier voicemail system walks you through each step
3. If the call fails or you hear a generic carrier message instead of the voicemail system, the voicemail number may be wrong. Settings, in the Phone app — look for Voicemail, Voicemail Number. The correct number varies by carrier — contact your carrier or check their support website for the correct voicemail access number

iPhone

1. Open the Phone app and tap the Voicemail tab at the bottom right
2. If Visual Voicemail is set up, you will see a list of voicemail messages. If you see a message saying to set up voicemail, tap Set Up Now and follow the prompts to create a PIN and greeting
3. If the Voicemail tab shows Call Voicemail instead of a message list, Visual Voicemail is not available on your plan or carrier. You can still access voicemail by tapping Call Voicemail or dialing your own number

Check if the mailbox is full

• A full voicemail box rejects new messages. Callers hear that the mailbox is full and cannot leave a message. You need to delete old messages to make room
• Access your voicemail and listen to or delete saved messages. Most carriers limit voicemail storage to 20 to 40 messages. Saved messages that you listened to but did not delete still count toward the limit
• Some carriers also have a time limit — messages older than 14 to 30 days are automatically deleted, but until then they occupy space in your mailbox
• After deleting messages, have someone call you and leave a test voicemail to confirm new messages can be recorded

Check call forwarding settings

Voicemail works through call forwarding — when you do not answer, the carrier forwards the call to the voicemail system. If call forwarding is misconfigured, calls may not reach voicemail:

Android

• Open the Phone app, tap the three-dot menu, Settings, Calling Accounts (or the SIM card), Call Forwarding
• Check the forward-when-busy, forward-when-unanswered, and forward-when-unreachable numbers. These should all point to your carrier voicemail number. If they are empty or point to a different number, calls are not being forwarded to voicemail
• The voicemail forwarding number varies by carrier. You can reset call forwarding by dialing specific carrier codes: for most GSM carriers, dial ##004# and press call. This resets all conditional call forwarding to the carrier default (which is usually voicemail)

iPhone

• Settings, Phone, Call Forwarding — if Call Forwarding is enabled and pointing to a number other than voicemail, calls are being forwarded elsewhere instead of to voicemail. Turn it off to restore normal voicemail behavior
• Call forwarding on iPhone is unconditional — it forwards all calls, not just unanswered ones. The conditional forwarding to voicemail is handled by the carrier network and is not visible in iPhone settings

Check Do Not Disturb

• If Do Not Disturb is active and sending calls directly to voicemail, you will still receive voicemails but may not get notifications. Check that DND is configured to allow notifications for voicemail
• Some DND configurations silence all calls, which means calls ring once (or not at all) and go to voicemail faster than normal. The caller experience is different from a normal ring pattern, and some callers may think the phone is off

Visual Voicemail troubleshooting

Visual Voicemail displays voicemail messages as a list you can tap to play, rather than requiring you to call in and listen sequentially:

• Not loading: Visual Voicemail requires a data connection. If you are on Wi-Fi only with poor signal, or cellular data is off, Visual Voicemail cannot sync. Make sure cellular data is enabled
• Error messages: If Visual Voicemail shows an error or will not set up, the feature may not be provisioned on your carrier account. Contact your carrier and ask them to enable Visual Voicemail. Some plans do not include it, or it needs to be activated separately
• Delayed notifications: Visual Voicemail notifications can be delayed by minutes to hours if your phone has a weak data connection. The voicemail is stored on the carrier server and the notification is pushed to your phone over data. Carrier network congestion or your phone being in a low-signal area delays the push

Carrier-specific fixes

• Reset voicemail password: If you forgot your voicemail PIN and are locked out, most carriers let you reset the PIN through their app, website, or by calling customer service. You cannot access your voicemail without the correct PIN
• Re-provision voicemail: Sometimes the carrier-side voicemail configuration gets corrupted. Contact your carrier and ask them to remove and re-add voicemail to your line. This resets the mailbox on their end and often fixes issues that persist after all phone-side troubleshooting
• SIM card issues: If you recently got a new SIM card or switched to an eSIM, voicemail settings may not have transferred. The carrier may need to reprovision voicemail for the new SIM

Network-related voicemail issues

• If you are in an area with very weak cellular signal, calls may not connect to the voicemail system at all. The carrier tries to forward the call but the network cannot complete the forwarding. The caller hears ringing that never goes to voicemail or gets a generic error
• Wi-Fi Calling can affect voicemail routing. If Wi-Fi Calling is enabled and your Wi-Fi network has issues, voicemail delivery can be disrupted. Try disabling Wi-Fi Calling temporarily and testing voicemail
• International roaming changes voicemail access numbers. If you are traveling internationally and voicemail is not working, you may need to dial a different access number specific to international roaming. Check your carrier website for international voicemail access instructions

Third-party voicemail apps

• If your carrier voicemail is unreliable, third-party voicemail apps like Google Voice, YouMail, or HulloMail provide an alternative voicemail system with visual voicemail, transcription, custom greetings per caller, and spam call screening
• These apps work by setting up call forwarding from your carrier to the third-party voicemail number. Setup is usually automated through the app. The trade-off is that voicemail is now managed by a third party rather than your carrier

Voicemail setup and phone repair in Marion

If your voicemail is not working and the troubleshooting above did not fix it, Marion Phone Repair can check your phone settings, carrier configuration, and call forwarding setup, diagnose whether the issue is on the phone side or carrier side, and configure voicemail to work reliably for both standard and visual voicemail.