For privacy reasons, the default setting for the Employee's phone and
email information is set to only allow Managers to see them.
Each Employee can log into their account and go to their "Info"
section to change their phone and email options so all other Employees
can see it if they choose. Then if shared, their phone and email will
appear in the "Staff" section for other Employees to see.
You could send a message out to your Employees encouraging them to
change their settings so other Employees can see their information. But
this is an option each Employee must decide to change based on their own privacy concerns.