phone_filter/view/partner_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="view_filter_partner_phone_search" model="ir.ui.view">
            <field name="name">partner.partner_phone_search.search</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_res_partner_filter" />
            <field name="arch" type="xml">
                <search>
                  <separator/>
                  <field name="phone" string="Telefono" filter_domain="[('phone','ilike', self)]"/>
                  <field name="mobile" string="Celular" filter_domain="[('mobile','ilike', self)]"/>
                </search>
            </field>
        </record>


    </data>
</openerp>