With individual greetings you are able to record a personal greeting for a specific person in your contact or number - a different greeting for each person! 

On iPhone

1. Select Menu -> Greetings -> Individual Greetings
2. Click the '+' icon in the top right
3. Tap on the Search field to find a contact
   Or manually enter a number and press enter
4. Select an already recorded greeting to assign
5. Your individual greeting will then be assigned to your chosen contact/number

On Android

1. Select Menu/Settings -> Greetings -> Individual greetings
2. Tap on the Search field to find a contact
   Or manually enter a number and press enter
3. Select an already recorded greeting to assign
   Or press the top right '+' button to record a new one
4. Your individual greeting will then be assigned to your chosen contact/number