Thanks for checking this, Chrissy101
We're sorry to hear you've always had this but stopped working recently.
Pease, try leaving a new voicemail on the phone.
Once you've done this, you must listen to the new voicemail in full until you're prompted to delete it, at which point you can go ahead and do this.
If that doesn't work, check their voicemail inbox is definitely empty by deleting all messages, including any saved ones, and perform a reboot (not a factory reset) of the handset.
Let us know if this helps fixing the issue, happy to assist further if you still need help.
