How do I turn on voice recognition for contacts. In other words, like call mom

Hi kyager1,

Thanks for coming to Apple Support Communities for help with making a call on your iPhone with your voice.

You'd actually do this using Siri. Here are some phrases to accomplish this: Make a call on iPhone.

' Say “call” or “dial” followed by a number. Speak each digit separately—for example, “four one five, five five five….” For the 800 area code in the U.S., you can say “eight hundred.” '

or

' Say something like: “Call Eliza’s mobile.” '

Siri is probably already switched on, but you may find this site helpful: What Can I Ask Siri?

Have a fantastic day!