Hi everybody, I don't if it is a bug in my program (which is quite the same as the pjsua-simple.c example) or if it is a bug in PJSIP but when doing multiple call and exiting the application, I have on the output hundred of lines (corresponding to my hundred of calls): 07:14:34.772 dlg0x26cb30 Pool is not released by application, releasing now 07:14:34.772 dlg0x26db48 Pool is not released by application, releasing now 07:14:34.772 dlg0x27cf28 Pool is not released by application, releasing now 07:14:34.772 dlg0x27fee0 Pool is not released by application, releasing now 07:14:34.772 dlg0x284930 Pool is not released by application, releasing now 07:14:34.772 dlg0x2868e0 Pool is not released by application, releasing now 07:14:34.772 dlg0x28b330 Pool is not released by application, releasing now 07:14:34.772 dlg0x28d2e0 Pool is not released by application, releasing now 07:14:34.772 dlg0x291d30 Pool is not released by application, releasing now 07:14:34.773 dlg0x294c88 Pool is not released by application, releasing now 07:14:34.773 dlg0x297730 Pool is not released by application, releasing now 07:14:34.773 dlg0x29c988 Pool is not released by application, releasing now 07:14:34.773 dlg0x29e938 Pool is not released by application, releasing now 07:14:34.773 dlg0x2a3388 Pool is not released by application, releasing now 07:14:34.773 dlg0x2a5338 Pool is not released by application, releasing now [...] I don't know if I missed something ?! Thank you Mathieu