2248567d_onnect_Messages_1_0___draft_14__Member
[Type] string [Description] The End-User's preferred telephone number. E.164 (International Telecommunication Union, “E.164: The international public telecommunication numbering plan,” 2010.) [E.164] is RECOMMENDED as the format of this Claim. For example, +1 (425) 555-1212 or +56 (2) 687 2400. [Member] 
phone_number
Draft: OpenID Connect Messages 1.0 - draft 14