Hi! Some questions regarding tm: How long does statefull transactions live inside openser? Is it correct that wt_timer is the timeout for completed transactions, and fr_inv_timer/fr_timer is for incomplete transactions? What is a complete transaction in case of INVITE? With or without ACK? openserctl shows 44 transactions although the box is idle since long time: tm:inuse_transactions = 044 Are there really 44 transaction open or what does 044 mean? How much memory does a transaction approximately need (no AVPs)? thanks klaus