Queue first, then while MS is in Queue, the BSC will attempt DR, or other similar mechanism (forced DR, fast traffic HO – vendor dependent)
Number of MS in queue should be limited… at least, it is limited in Alcatel system. The BSC can’t handle 1 billion MS in the queue 🙂
The limit in alcatel is BTS Q Lenght. It either doesn’t exist in your system, or it has another name (MS queue ? queue limit ? queue size ? waiting number ?)
🙂