I want to know the user's phone number, but I can't find any mention in this documentation.
Is there any way to obtain the user's phone number?
Update: The user_address and user_mobile_phone permissions have been removed. Please see this post for more info.
The post: https://developers.facebook.com/blog/post/447/
We’ll be working to launch these updates as soon as possible, and will be temporarily disabling this feature until those changes are ready. We look forward to re-enabling this improved feature in the next few weeks.
This post is from 2011, next few weeks at Facebook are quite long..
We can conclude there is no way to get this information.