Field Definitions are Available Here
Collection
string(10)
Optional
The type of telephone number being provided in this instance of the phone number, in order to reach the organization or individual who serves as a point of contact. Voice number is used to speak to the org or individual, the TDD/TTY numberwhich hearing-impaired can converse with org or indiv., or the fa(x)csimile number of the org's or indiv.
Voice
Role, HoursofService, ContactInstructions, ContactJobPosition, ContactFirstName, ContactMiddleName, ContactLastName, StreetAddress, City, StateProvince, PostalCode, Country, TelephoneNumber, ElectronicMailAddress
Voice
Must be used with Role, ContactFirstName, ContactLastName, TelephoneNumber.
METADATA > COLLECTIONMETADATA > Contact > ContactPerson > ContactPersonContainer > Telephone > TelephoneContainer.TelephoneNumberType
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:pointOfContact/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:phone/gmd:CI_Telephone
Followed by gmd:voice, gmd: facsimile, etc.
Identification Information