Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; International Mobile station Equipment Identities (IMEI) (V15.0.0; 3GPP TS 22.016 version 15.0.0 Release 15)
The present document defines the principal purpose and use of International Mobile station Equipment Identities (IMEI). 3GPP TS 23.003 describes the technical manner of numbering@ addressing and identification.