ETSI TR 122 988-2014 Universal Mobile Telecommunications System (UMTS); LTE; Study on alternatives to E.164 for Machine-Type Communications (MTC) (V12.2.0; 3GPP TR 22.988 version 12.2.0 Release 12)
2017ETSI TR 122 988-2017 Universal Mobile Telecommunications System (UMTS); LTE; Study on alternatives to E.164 for Machine-Type Communications (MTC) (V14.0.0; 3GPP TR 22.988 version 14.0.0 Release 14)
2016ETSI TR 122 988-2016 Universal Mobile Telecommunications System (UMTS); LTE; Study on alternatives to E.164 for Machine-Type Communications (MTC) (V13.0.0; 3GPP TR 22.988 version 13.0.0 Release 13)
2014ETSI TR 122 988-2014 Universal Mobile Telecommunications System (UMTS); LTE; Study on alternatives to E.164 for Machine-Type Communications (MTC) (V12.2.0; 3GPP TR 22.988 version 12.2.0 Release 12)