Sunday, January 27, 2019
LTE Attach and Default Bearer Setup Messaging
Prior to the LTE mobile phone being tracked in the LTE network their is still the setup process that enables the handset to gain access to network services. This useful guide illustrates the steps involved which a CSA investigator should have an understanding, not least of which is knowing S1AP: when the IMSI and GUTI are used; S11: The IP assigned to the mobile station and current location of the user; and a host of other useful information that often crops up in investigations.
