“The timer T10 starts before the BSC sends a PHYSICAL_CONTEXT_REQUEST message to the BTS.
The timer T10 stops when the MS sends either an ASSIGNMENT_COMPLETE or an ASSIGNMENT_FAILURE message to the
BSC. When the timer T10 expires, the BSC sends an ASSIGNMENT_FAILURE message to the MSC.”
Actually its default value is 8 and yours 16. I wonder the effects of values which are higher than the current ones :))