diff --git a/resources/install/scripts/app/voicemail/index.lua b/resources/install/scripts/app/voicemail/index.lua
index 97037eef3a..fa853dd2dc 100644
--- a/resources/install/scripts/app/voicemail/index.lua
+++ b/resources/install/scripts/app/voicemail/index.lua
@@ -276,16 +276,17 @@
 						--unset bind meta app
 							session:execute("unbind_meta_app", "");
 
-						--set the callback function
-							if (session:ready()) then
-								session:setVariable("playback_terminators", "#");
-								session:setInputCallback("on_dtmf", "");
-							end
 						end
 				end
 			end
 	end
 
+--set the callback function
+	if (session:ready()) then
+		session:setVariable("playback_terminators", "#");
+		session:setInputCallback("on_dtmf", "");
+	end
+
 --general functions
 	require "resources.functions.base64";
 	require "resources.functions.trim";