Merge pull request #3096 from jmacelroy/master

Cleaning up call flow presence stanzas and cancel triggers.

resources/prosody-plugins/mod_muc_call.lua

 
 -- Status strings that trigger call events.
 local calling_status   = "calling"
-local ringing_status   = "ringing"
 local busy_status      = "busy"
 local rejected_status  = "rejected"
 local connected_status = "connected"
 --    Status      | Event Type
 --    _________________________
 --    "calling"   | INVITE
 --    "busy"      | CANCEL
 --    "rejected"  | CANCEL
 --    "connected" | CANCEL
 	local switch = function(status)
 	   case = {
 		  [calling_status]   = function() invite() end,
-		  [ringing_status]   = function() cancel() end,
 		  [busy_status]      = function() cancel() end,
 		  [rejected_status]  = function() cancel() end,
 		  [connected_status] = function() cancel() end

resources/prosody-plugins/mod_muc_poltergeist.lua

         join:tag("password", { xmlns = MUC_NS }):text(room_password);
     end
 
+    -- Update the nil call id to the initial call id for call flows.
 	local call_id = get_username(room, context.user.id);
-	join_presence:tag("call_id"):text(get_username(room, context.user.id)):up();
+    join_presence:maptags(function (tag)
+        if tag.name == "call_id" then
+           return st.stanza("call_id"):text(call_id);
+        end
+        return tag;
+    end);
 
     update_presence_identity(
         join_presence,
                 return st.stanza("call_cancel"):text("false");
             end
         end
+        return tag;
     end);
 
     return presence_stanza