Hi, I'm trying to use the pjsua API to create an INVITE that I'd like to CANCEL whilst the remote party is in the early media phase, i.e. after the 183 but before the 200. To do this I'm calling pjsua_call_hangup(), which seems to have the correct effect in terms of signalling to the remote peer, but I'm getting this error message from the API: 21:46:00.245 pjsua_call.c .............Failed to send end session message: Object already exists (PJ_EEXISTS) [status=70015] So I'm wondering whether I should either ignore this error or whether I'm just using the API wrongly. I've looked at pjsua_call_send_request() but the documentation implies that sending a message via these means as a way to CANCEL an INVITE might have an adverse affect of the library's view of the current state. Any pointers are appreciated. Cheers, Ben
