If you are unable to access voicemail on your iPhone – which means you're getting the “Visual Voicemail Is Unavailable Error” – it is most probably a network issue. Before reaching the voicemail number to check your voicemail through a phone call (which, I needn't say, is a pain in the back), you might want to make sure your network works fine. In about 90% of the cases, once you get to a point where the signal is strong, and the network is working fine, your voicemails should be instantly available.
The trick in fixing the Visual Voicemail Unavailable Error is to reset your network. Before this, though, you should try to fix the network. We've got a variety of ways to fix network problems.
How to Fix Visual Voicemail Currently Unavailable Error on iPhone
Solution #1: Turn On/Off Airplane Mode
Turning ON the Airplane mode and then after about 10-20 seconds, turning it OFF again is a well-known (and pretty old) trick to fix 3G, 4G or LTE network settings. Like I said, since it's most probably an issue with your 3G/LTE setting, the fix might be to switch off the network and restart it again.
Go to Settings → and turn ON Airplane Mode.
After about 20 seconds, turn it back OFF and wait for a while before trying to fetch Voicemails again.
Before you head to check the Voicemail from the Phone app, check mail or open a website to see if your network is working fine.
Solution #2: Force Reboot Your Device
If the above method doesn't work, you might as well try to reboot your iPhone. This effectively refreshes all connections and in the process, might fix the network problem.
Just press and hold on Home and sleep/wake button at once for about 10 seconds. On your iPhone 7/7 Plus, press and hold on your sleep/wake button and volume down button at once.
Solution #3: Reset Network Settings
Still facing this issue? Try resetting the network to the factory setting. One thing you need to know that it will wipe out all the Wi-Fi passwords. Hence, you will have to re-enter them.
Go to Settings → General → Reset → Reset Network Settings and confirm.
What if nothing works?
Most probably, these solutions will troubleshoot the problem. As I have always found success with them, I think they can do the job for you as well.
Let us know your feedback about these solutions. If you know any other trick to fixing this problem, do share it with us.
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