For inbound Inter-System RAU, which message sends the SGW change indication to the old SGSN?
A. context request
B. context response
C. context acknowledgment
D. modify bearer request
E. modify bearer response
For inbound Inter-System RAU, which message sends the SGW change indication to the old SGSN?
A. context request
B. context response
C. context acknowledgment
D. modify bearer request
E. modify bearer response