phonecall_history_inopportunity/views/phonecall_view_opportunity.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <record id="view_phonecall_opportunity_form" model="ir.ui.view">
            <field name="name">view.phonecall.opportunity.form</field>
            <field name="model">crm.lead</field>
            <field name="inherit_id" ref="crm.crm_case_form_view_oppor"/>
            <field name="arch" type="xml">
                <notebook>
                    <page string="Historial Llamadas">

                            <group col="1">
                                <field name="phonecall_ids" readonly="1" nolabel='1'>
                                    <tree>
                                        <field name="create_date" string="Fecha" data-sortable="true"/>
                                        <field name="name" string="Resumen de llamada"/>
                                        <field name="partner_id" string="Cliente" data-sortable="true"/>
                                        <field name="partner_phone" string="Teléfono"/>
                                        <field name="priority" string="Prioridad" data-sortable="true"/>
                                        <field name="state" string="Estado" data-sortable="true"/>
                                        <field name="categ_id" string="Categoría"/>
                                        <field name="opportunity_id" string="Oportunidad"/>
                                        <field name="user_id" string="Encargado"/>

                                    </tree>
                                </field>
                            </group>

                    </page>
                </notebook>
            </field>
        </record>
    </data>
</openerp>