Hello Dears.
In EPSFB scenario, the 1st TAU in 4G must be accepted, or it might be rejected and proceeded by a ATTACH REQUEST?
Hello Dears.
In EPSFB scenario, the 1st TAU in 4G must be accepted, or it might be rejected and proceeded by a ATTACH REQUEST?
Reject may cause call drop.
Thanks!
That’s what I have observed.