diff --git a/addons/crm/crm_phonecall_view.xml b/addons/crm/crm_phonecall_view.xml
index 23f871d1581..34ef2612623 100644
--- a/addons/crm/crm_phonecall_view.xml
+++ b/addons/crm/crm_phonecall_view.xml
@@ -31,7 +31,7 @@
                 <field name="partner_contact"/>
                 <field name="partner_phone"/>
                 <field name="user_id"/>
-                <field name="categ_id"/>
+                <field name="categ_id" invisible="1"/>
                 <field name="create_date" invisible="1"/>
                 <field name="opportunity_id" invisible="1"/>
                 <button string="Convert to Opportunity"
@@ -107,7 +107,7 @@
                 <field name="description" nolabel="1" colspan="4" />
                 <separator colspan="4" />
                 <group col="8" colspan="4">
-                	<field name="state" widget="statusbar" statusbar_visible="open,done" statusbar_colors='{"pending":"red"}' select="1"/>
+                    <field name="state" widget="statusbar" statusbar_visible="open,done" statusbar_colors='{"pending":"red"}' select="1"/>
                     <button name="case_cancel" string="Cancel"
                         states="open,pending" type="object"
                         icon="gtk-cancel" />
@@ -141,13 +141,17 @@
                     on_change="onchange_partner_id(partner_id)"
                     string="Partner" />
                 <field name="partner_address_id"
-                        on_change="onchange_partner_address_id(partner_address_id)" />
-                <field name="partner_phone"/>
-                <field name="user_id"/>
+                        on_change="onchange_partner_address_id(partner_address_id)"
+                        invisible="1"/>
+                <field name="partner_phone"
+                    invisible="1"/>
+                <field name="user_id" groups="base.group_extended"/>
                 <field name="categ_id" widget="selection"
-                    domain="[('object_id.model', '=', 'crm.phonecall')]"/>
+                    domain="[('object_id.model', '=', 'crm.phonecall')]"
+                    invisible="1"/>
                 <field name="state" invisible="1"/>
                 <field name="create_date" invisible="1"/>
+                <field name="opportunity_id" invisible="1"/>
                 <button string="Schedule Other Call"
                     icon="terp-call-start"
                     name="%(phonecall_to_phonecall_act)d"
@@ -155,6 +159,11 @@
                 <button string="Meeting"
                      icon="gtk-redo"
                      name="action_make_meeting" type="object" />
+                <button string="Convert to Opportunity"
+                    name="%(phonecall2opportunity_act)d"
+                    states="open,pending"
+                    icon="gtk-index"
+                    type="action" attrs="{'invisible':[('opportunity_id','!=',False)]}" />
             </tree>
         </field>
     </record>