How do I transfer my voicemail archive from iPhone 4 to the iPhone 6?

[iMore Question]

I have a lot of voicemail that I saved in my iPhone 4. How can I transfer them to my new iPhone 6?

 

[Bigeric23]

They should be in your backup, so if you restore from that backup, all should be good. Also, if you're really concerned, you could record them with another device.