diff --git a/call.py b/call.py
index a6f801e..bebcefa 100644
--- a/call.py
+++ b/call.py
@@ -33,8 +33,8 @@ class Call(ModelSQL, ModelView):
          ('equipment', 'Equipment')],
         'Business unit', states=_states
     )
-    call_assigned_operator = fields.Many2One(
-        'res.user', "Assigned operator", states=_states)
+    operator_who_called = fields.Many2One(
+        'res.user', "Operator who called", states=_states)
 
     @classmethod
     def __setup__(cls):
diff --git a/prospect_trace.py b/prospect_trace.py
index ea14195..395caab 100644
--- a/prospect_trace.py
+++ b/prospect_trace.py
@@ -151,7 +151,7 @@ class MakeCall(Wizard):
         call.interest = self.start.interest
         call.prospect_trace = self.record
         call.call_business_unit = self.record.prospect_business_unit
-        call.call_assigned_operator = self.record.prospect_assigned_operator
+        call.operator_who_called = self.record.prospect_assigned_operator
 
         if call.interest == '0':
             call.call_result = 'missed_call'
diff --git a/tests/scenario_sale_opportunity_management.rst b/tests/scenario_sale_opportunity_management.rst
index da358ad..8cea081 100644
--- a/tests/scenario_sale_opportunity_management.rst
+++ b/tests/scenario_sale_opportunity_management.rst
@@ -228,7 +228,7 @@ Verificar estado final del seguimiento del prospecto y sus llamadas::
     True
     >>> prospect_trace.calls[0].call_business_unit
     'brigade'
-    >>> prospect_trace.calls[0].call_assigned_operator.name
+    >>> prospect_trace.calls[0].operator_who_called.name
     'Administrator'
     >>> prospect_trace.calls[1].call_result
     'answered_call'
@@ -292,7 +292,7 @@ Reasignar prospectos por operador::
     'Operatus'
 
     .. Las llamadas deben conservar el operador que las hizo
-    >>> prospect_trace.calls[0].call_assigned_operator.name
+    >>> prospect_trace.calls[0].operator_who_called.name
     'Administrator'
 
 Reasignar prospectos por prospecto::
@@ -308,7 +308,7 @@ Reasignar prospectos por prospecto::
     >>> prospect_trace.reload()
     >>> prospect_trace.prospect_assigned_operator.name
     'Administrator'
-    >>> prospect_trace.calls[0].call_assigned_operator.name
+    >>> prospect_trace.calls[0].operator_who_called.name
     'Administrator'
 
 --------
diff --git a/view/call_tree.xml b/view/call_tree.xml
index 2cc5fca..575a0b1 100644
--- a/view/call_tree.xml
+++ b/view/call_tree.xml
@@ -9,5 +9,5 @@ this repository contains the full copyright notices and license terms. -->
     <field name="prospect_trace" expand="1"/>
     <field name="description" expand="1"/>
     <field name="call_business_unit" expand="1"/>
-    <field name="call_assigned_operator" expand="1"/>
+    <field name="operator_who_called" expand="1"/>
 </tree>
\ No newline at end of file