FirstLegDisconnectedView.py

class FirstLegDisconnectedView(APIView):
    
    def post(self, request, *args, **kwargs):
        call_sid = request.POST['CallSid']
       
        conference_room = get_conference_room() # get the conference same as the customer's one
        
        response = VoiceResponse()
        dial = Dial()
        dial.conference(request.GET["conference_room"], end_conference_on_exit=False)
        response.append(dial)

        return HttpResponse(response, content_type="application/xml")