Hi I get a crash in the above function when I test my application with a load testing tool (about 1 call is send each 2 seconds). The call stack shows only calls from pjsua dll (version 2.2.1), so I am not sure if this is due to my application or there is a bug in pjsua. The crash happens randomly, but I am able to reproduce it. It seems that about 10 calls need to treated simultaneously in order to generate this issue. regards Bogdan
