List contact phone types
Returns every phone type id/name pair valid for the phoneTypeId field on
POST /api/v1/client-contacts/{guid}/phones.
A value returned here is always accepted as phoneTypeId on that endpoint. This is a separate
endpoint from phone-types (which is specific to Applicants) because phone types are scoped
per user type.
Authentication
AuthorizationBearer
BrightMove OAuth2 client_credentials - use the client_id/client_secret from User > API Keys (or an admin-managed client).
Response
Contact phone types returned