Hi, we are using pjsua-api to implement presence updates on iOS. We have successfully implemented adding a buddy (with pjsua_buddy_add <https://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__BUDDY.htm#gad1b82adc1e1cfe921a9dae1204b73388>) and subscribing to presence changes (with pjsua_buddy_subscribe_pres <https://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__BUDDY.htm#ga05c4ba4b1528b484e3b21f89d5253a18> ). However, looking at the documentation I'm not sure how to listen to buddy status changes. I could periodically check the buddy status (with pjsua_buddy_get_info <https://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__BUDDY.htm#ga5adda312fa7dff7a782a0d4447b3175c>) but is that the right way? Any guidance appreciated. Thanks, Chris