if end/close SIP calling as normally, it will remove SIP account profile at settings> call settings> SIP Account
but when the application closed with force closed, make SIP account is not deleted in the SIP Account settings.
so, next SIP registration (with others acoount) become fail ..
is there a away to remove current SIP account profile on SIP Account with B4A ??
Dim r As Reflector
r.Target = SIP
Dim manager As JavaObject = r.GetField("manager")
Dim profile As JavaObject = r.GetField("me")
manager.RunMethod("unregister", Array(profile, Null))