core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

contactOption

Canonical URL: http://schema.org/contactOption

Thing > Property > contactOption

An option available on this contact point (e.g. a toll-free number or support for hearing-impaired callers).

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
ContactPointOption
Used on these types
ContactPoint

Schema Version 3.2