Hi Laxman, | Please tell me the way so I can get the string from PJ_LOG function | defined in pjsua.acc.c in my iphone source code to display the status. have a look at pjsua_logging_config_default() from pjsip/include/pjsua.lib/pjsua.h. It takes a pjsua_logging_config parameter struct that contains a pointer to a callback function. From your own callback you can prepare the strings for your UI. Regards, Sebastian.