diff --git a/mitel_ommclient2/client.py b/mitel_ommclient2/client.py
index 7e54f12..a63417f 100644
--- a/mitel_ommclient2/client.py
+++ b/mitel_ommclient2/client.py
@@ -147,6 +147,20 @@ class OMMClient2:
         d = self.get_device(ppn)
         return self.detach_user_device(d.uid, ppn)
 
+    def find_devices(self, filter):
+        """
+            Get all devices matching a filter
+
+            :param filter: function taking one parameter which is a device, returns True to keep, False to discard
+
+            Usage::
+
+                >>> c.find_devices(lambda d: d.relType == mitel_ommclient2.types.PPRelTypeType("Unbound"))
+        """
+
+        for d in self.get_devices():
+            if filter(d):
+                yield d
 
     def get_account(self, id):
         """
diff --git a/mitel_ommclient2/types/__init__.py b/mitel_ommclient2/types/__init__.py
index b57d445..ec456c9 100644
--- a/mitel_ommclient2/types/__init__.py
+++ b/mitel_ommclient2/types/__init__.py
@@ -72,6 +72,9 @@ class EnumType:
     def __repr__(self):
         return "{}({})".format(self.__class__.__name__, repr(self.value))
 
+    def __eq__(self, other):
+        return isinstance(other, type(self)) and self.value == other.value
+
 
 class CallForwardStateType(EnumType):
     VALUES = [