ContactPoint Type: Details for all kinds of technology mediated contact points for a person or organization, including telephone, email, etc.

ContactPoint
system
phone | fax | email | pager | url | sms | other
value
The actual contact point details
use
home | work | temp | old | mobile - purpose of this contact point
rank
Specify preferred order of use (1 = highest)
period
Time period when the contact point was/is in use