METHOD FOR INSTANT REGISTRATION OF A ROAMING UE ONTO A PREFERRED VPLMN FROM A NON-PREFERRED VPLMN

摘要

Disclosed is a method for forcing a User Equipment (UE) that was registered on a non-preferred network operator, to register immediately and seamlessly onto another available more preferred network operator, by updating the EF_LOCl in the UICC with the MCCMNC (i.e. PLMN ID) of the preferred network operator, and then sending the REFRESH - 3G Session Reset command to the Mobile Equipment (ME).