diff --git a/sip/asterisk.py b/sip/asterisk.py
index 735c6dda..7e57901a 100644
--- a/sip/asterisk.py
+++ b/sip/asterisk.py
@@ -36,12 +36,17 @@ class Profile(object):
         cur.close()
         conn.close()
 
+    def right_to_nums(self, right):
+        conn=lc_ldap.shortcuts.lc_ldap_readonly()
+        ret=conn.search(u"(&(droits=%s)(!(chbre=EXT)))" % right)
+        return [ "1%04d" % adh['aid'][0].value for adh in ret]
+
     def alias_to_num(self, alias):
         try:
             conn=lc_ldap.shortcuts.lc_ldap_readonly()
             ret=conn.search(u"(|(uid=%(alias)s)(mailAlias=%(alias)s@crans.org)(canonicalAlias=%(alias)s@crans.org))" % {'alias' : alias})
             if len(ret) == 1:
-                return "1" + str(ret[0]['aid'][0])
+                return "1%04d" % ret[0]['aid'][0].value
             else:
                 return "NONE"
         except:
diff --git a/sip/scripts/right_to_nums b/sip/scripts/right_to_nums
new file mode 100755
index 00000000..40733803
--- /dev/null
+++ b/sip/scripts/right_to_nums
@@ -0,0 +1,16 @@
+#!/bin/bash /usr/scripts/python.sh
+# -*- coding: utf-8 -*-
+
+import sys
+from sip.asterisk import Profile
+
+if __name__ == '__main__' :
+	if len(sys.argv)>1:
+		profile = Profile()
+                nums=profile.right_to_nums(sys.argv[1])
+                if nums:
+			sys.stdout.write('SIP/' + '&SIP/'.join(nums))
+		else:
+			sys.stdout.write('NONE')
+	else:
+		print >> sys.stderr, "Usage %s {right}" % sys.argv[0]