Section: 8.123 Remote User ID
Content: Remote User ID is transferred via GTP tunnels and is coded as depicted in Figure 8.123-1. The Remote User ID IE shall contain one IMSI identity and, if available, one IMEI identity and/or one MSISDN identity. The flag MSISDNF in octet 5 indicates if the MSISDN shall be present in the respective field. The flag IMEIF in octet 5 indicates if the IMEI shall be present in the respective field. The IMSI field including the Length of IMSI shall be always present. Figure 8.123-1: Remote User ID The coding of IMSI field, from octets 7 to 'a' shall be encoded as the octets 5 to n+4 of the IMSI IE type specified in clause 8.3. The coding of MSISDN field, octets 'b+1' to 'c' shall be encoded as the octets 5 to n+4 of the MSISDN IE type specified in clause 8.11. The coding of IMEI field, octets 'd+1' to 'e' shall be encoded as the octets 5 to n+4 of the MEI IE type specified in clause 8.10.