Hi! I read the documentation and searched through the archives but I couldn't find an answer to this question. I apologize if I missed something. I'm working on writing a module using Kamailio 3.3. While processing an INVITE I use t_reply_with_body () and send a 180 (Ringing) response, t_suspend () the transaction, process a PRACK and try to t_continue () but I notice the following results: - The callback I created before t_suspend () receives a TMCB_DESTROY before the PRACK arrives - I can use t_continue () but it never returns to the calling routine I appreciate any guidance you can provide, Bob