VoLTE support for 5S and 5C?

[icanhazapple]

Is this a 6/6+ only feature or does the 5S and 5C have VoLTE support?

 

[BarryL]

Older devices won't support this.

 

[wxman2003]

Is this a 6/6+ only feature or does the 5S and 5C have VoLTE support?

You will find out tomorrow if you update to ios 8. After updating, go to your verizon account and change features. It should be listed if your device is capable.