I have experienced a peculiar problem in Siemens BSS. we have implemented half rate in one of our BSCs, it was found out that there was a increase in Drop call rate. The main reason for the increase in the drop call rate was the tint value settings in the BSC. when the tint value was set to zero(that is to say all the time slots are configured as half rate) the drop call rate came down. Can anybody explain how the tint value has a effect on the drop call rate?