diff --git a/resources/install/scripts/app/xml_handler/resources/scripts/configuration/callcenter.conf.lua b/resources/install/scripts/app/xml_handler/resources/scripts/configuration/callcenter.conf.lua
index 9806d6a76d..a7169c70ab 100644
--- a/resources/install/scripts/app/xml_handler/resources/scripts/configuration/callcenter.conf.lua
+++ b/resources/install/scripts/app/xml_handler/resources/scripts/configuration/callcenter.conf.lua
@@ -24,6 +24,9 @@
 --      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 --      POSSIBILITY OF SUCH DAMAGE.
 
+--include functions
+	require "resources.functions.format_ringback"
+
 --get the cache
 	hostname = trim(api:execute("switchname", ""));
 	if (trim(api:execute("module_exists", "mod_memcache")) == "true") then
@@ -95,25 +98,9 @@
 
 					table.insert(xml, [[                            <queue name="]]..queue_name..[[@]]..domain_name..[[">]]);
 					table.insert(xml, [[                                    <param name="strategy" value="]]..queue_strategy..[["/>]]);
-					if (string.len(queue_moh_sound) == 0) then
-						table.insert(xml, [[                                    <param name="moh-sound" value="local_stream://default"/>]]);
-					else
-						if (string.sub(queue_moh_sound, 0, 14) == 'tone_stream://' or string.sub(queue_moh_sound, 0, 2) == '${') then
-							--given this string --tone_stream://${us-ring};loops=-1  --return us-ring
-							a, b, tone_string = string.find(queue_moh_sound, ".*{(.*)}.*");
-							if (tone_string ~= nil) then
-								tone_string = trim(api:execute("global_getvar", tone_string));
-								table.insert(xml, [[                                    <param name="moh-sound" value="tone_stream://]]..tone_string..[[;loops=-1"/>]]);
-							end
-						elseif (string.sub(queue_moh_sound, 0, 15) == 'local_stream://') then
-							table.insert(xml, [[                                    <param name="moh-sound" value="]]..queue_moh_sound..[["/>]]);
-						else
-							if (queue_moh_sound == nil or queue_moh_sound == "") then
-								queue_moh_sound = "local_stream://default";
-							end
-							table.insert(xml, [[                                    <param name="moh-sound" value="]]..queue_moh_sound..[["/>]]);
-						end
-					end
+				--set ringback
+					queue_ringback = format_ringback(queue_moh_sound);
+					table.insert(xml, [[                                    <param name="moh-sound" value="]]..queue_ringback..[["/>]]);
 					if (queue_record_template ~= nil) then
 						table.insert(xml, [[                                    <param name="record-template" value="]]..queue_record_template..[["/>]]);
 					end