diff --git a/conf/dialplan/extensions/sipphone.com.noload b/conf/dialplan/extensions/sipphone.com.noload
index e173623aae..a6ea9e8d41 100644
--- a/conf/dialplan/extensions/sipphone.com.noload
+++ b/conf/dialplan/extensions/sipphone.com.noload
@@ -1,6 +1,6 @@
 <include>
   <extension name="sipphone.com">
-    <condition field="destination_number" expression="^(1222.*)$|^(1747.*)$">
+    <condition field="destination_number" expression="^((1222.*)$|^(1747.*))$">
       <action application="bridge" data="sofia/gateway/proxy01.sipphone.com/$1"/>
     </condition>
   </extension>