When I set my voicemail to custom it still plays the default message how do I fix this

Hello Ricklc,

If your custom voicemail greeting is not working, check to make sure you don't currently have the Live Voicemail option turned on.

1. Open the Settings app, then tap Phone.

2. Tap Live Voicemail.

3. Turn Live Voicemail off.

Use Live Voicemail on your iPhone

If that is turned off and your customer voicemail greeting still doesn't work, you'll want to contact your wireless carrier for assistance as the voicemail service comes from their end.

Cheers!