How to Set Up Voicemail on iPhone, With Carrier Steps

A missed call that goes nowhere is a lost message. If you want to know how to set up voicemail on iPhone, the good news is that the job usually takes about five minutes, and most of it is choosing a password and recording a greeting. This guide is for anyone with a new iPhone, a new number, or a mailbox that never got activated. It covers Visual Voicemail in the Phone app, the dial in method your carrier offers as a backup, and what to try when the Set Up Now button refuses to cooperate.

One thing to know up front: voicemail lives on your carrier's network, not on the iPhone itself. Apple's Phone app gives you the screen, but AT&T, T-Mobile, Verizon or your prepaid provider runs the mailbox. That is why some steps and password rules differ from carrier to carrier.

Before you start setting up iPhone voicemail

• A working cellular connection. AT&T notes that you cannot set up voicemail while using Wi-Fi calling, so turn it off for a moment if your signal is weak and Wi-Fi calling is on.
• A password in mind. AT&T asks for a voicemail password of 7 to 15 digits. Other carriers set their own rules, so pick something you will remember but that is not your birthday or the end of your phone number.
• A quiet room if you plan to record your own greeting.
• Some free storage. T-Mobile says Visual Voicemail needs at least 15% of the phone's memory free. If you are tight on space, our guide on clearing iPhone storage without losing photos can help.
• Your old mailbox password, if you are moving an existing number to a new phone. Carriers often keep your old mailbox and simply ask you to sign back in.

Set up Visual Voicemail in the Phone app

Visual Voicemail is the version most people want. Messages show up as a list, you can play them in any order, and Apple says you can view text transcriptions of messages in the Phone app. Here is the flow, following the steps AT&T publishes for iPhone owners.

1. Open the Phone app from your Home Screen.
2. Tap Voicemail at the bottom of the screen.
3. Tap Set Up Now. If you do not see this button, your mailbox may already be set up, so skip ahead to the section on changing your greeting.
4. Enter a new voicemail password and tap Done.
5. Enter the same password again to confirm it, then tap Done.
6. Choose Default to use the standard carrier greeting, or choose Custom to record your own. Tap Done when you are happy with it.
7. Your Visual Voicemail inbox appears. That is the sign the mailbox is live.

If you are an existing customer, the phone may skip the password creation and instead ask for the password you already have. AT&T warns that if you have forgotten it, you will not be able to get into voicemail until you reset it, which is covered further down.

Record a greeting that does its job

A custom greeting only needs your name and a short instruction, something like "You have reached Sam. Leave your name and number and I will call you back." Hold the phone the way you would on a normal call, wait a beat after tapping record, and play it back before you save. You can change the greeting later from the same Voicemail screen in the Phone app, so there is no pressure to get it perfect the first time.

Set up voicemail by calling your mailbox

If the Phone app keeps failing, or you are on a carrier that does not support Visual Voicemail, you can still set up a traditional mailbox by calling it.

1. Open the Phone app and tap Keypad.
2. Press and hold the 1 key. Both AT&T and T-Mobile use this shortcut to dial voicemail.
3. If you are asked for a password the first time, T-Mobile says to enter the last four digits of your phone number.
4. Follow the voice prompts to create your own password.
5. Record your greeting when asked.

Once the mailbox exists on the carrier's side, open Phone and then Voicemail again. In many cases the Visual Voicemail inbox shows up afterward, or the phone asks for the password you just created.

Verizon and many prepaid carriers use their own voicemail numbers and menus. If pressing 1 does nothing on your line, check your carrier's support site or app for its voicemail setup code.

Turn Live Voicemail on or off

Live Voicemail shows a transcription on your screen while the caller is still leaving a message, so you can pick up mid call if it turns out to be important. According to T-Mobile's iPhone guidance, Live Voicemail is on by default in iOS 17 and later.

1. Open Settings, then choose Phone. On recent iOS versions, the fastest route is to type "Live Voicemail" into the search bar at the top of Settings.
2. Tap Live Voicemail.
3. Turn the Live Voicemail switch on or off.

There is a catch worth knowing. T-Mobile says some of its own voicemail features, including its Voicemail to Text service, may not work alongside Live Voicemail on iPhone. If carrier features matter more to you, try switching Live Voicemail off.

Change or reset your voicemail password

Apple's iPhone User Guide notes that you can change your voicemail greeting, password and alert sounds in the Phone app. The carrier, though, is the one that can reset a password you have forgotten.

• AT&T: use the Reset my voicemail password page on AT&T's site after signing in, then choose Reset voicemail password. From the phone, press and hold 1, enter your password, then press 4 for Personal options, 2 for Administrative options, 1 for Password options and 1 to change it. Afterward, open the Visual Voicemail screen and enter the new password when prompted.
• T-Mobile: T-Mobile says you can check messages, change your greeting and reset your password by dialing 1.
• Prepaid lines: AT&T Prepaid customers can call 800.901.9878 (or 611 from the phone) and follow the prompts for Reset PIN. AT&T notes that new voicemails will not arrive until you create a new password.

You will find the full menus in AT&T's voicemail password help and T-Mobile's voicemail setup page.

When iPhone voicemail setup does not work

Most failures come down to the network, storage or call forwarding. Work through these in order.

1. Restart the iPhone. It is the quickest thing to try, and it refreshes the phone's connection to your carrier before you dig deeper.
2. Switch off Wi-Fi calling during setup, since AT&T says voicemail setup will not work over it.
3. Check the signal. If the status bar shows SOS or no bars, voicemail cannot reach the network. Our explainer on why your phone shows SOS walks through that problem.
4. Free up space. Visual Voicemail on T-Mobile needs at least 15% free memory.
5. Make sure the mailbox is not full. A full mailbox rejects new messages. Delete old ones from the Voicemail list.
6. Reset call forwarding if calls never reach voicemail. T-Mobile suggests dialing ##004# and pressing call to reset call forwarding settings. If calls ring forever without going to voicemail, also check that Focus or silencing settings are not getting in the way, which we cover in our guide to why a phone is not ringing.
7. Dial in from another line. T-Mobile customers can reach their mailbox from any phone at 1-805-MESSAGE (1-805-637-7243). If you hear an error or busy message while it plays, T-Mobile says to press 7.

If none of that works, contact your carrier. Voicemail provisioning happens on their end, and a support agent can see whether the mailbox was ever created on your line. T-Mobile's voicemail troubleshooting page is a useful reference before you call.

Moving to a new iPhone?

Voicemail usually follows your number, not your device, so a new phone on the same line normally picks up the existing mailbox once you sign in with your old password. If you are in the middle of switching phones, our walkthrough on setting up a new iPhone from your old one covers the rest of the move, and you can find more phone guides in our Gadgets section.

A final check worth doing: once everything is set up, call your own number from a friend's phone, let it go to voicemail and leave a short message. If it lands in the list with a transcription, you are done.