How can I find out which phone numbers for a contact are OK to call?

Display the contact record and enter Show Phone Numbers in the Action Bar.

Icons indicate if it's OK to call a number or not:

• No icon: Preference is unknown. This is the default.
• Do Not Call icon: The contact doesn’t want to be called at the number.
• Ok to Call icon: The contact gave permission to call at the number.

The same information is provided by two columns that you can use to sort the list:

• Do Not Contact
• OK to Contact