This field is used to identify either the default contact of the mentioned BP (editable field), or the contact for whom the call must be made if no BP is identified.
Several contact selection tools are available from this field. The first contextual menu, "Selection", is used to select a contact among a contact list irrespective of the BP code mentioned in the call header. The second contextual menu, "Select contacts", is used to select a contact among the list of existing contacts that are linked with the BP entered in the header. If no contact has been assigned to the BP, no contact selection list is displayed. The third contextual menu, "Contacts selection", is used to select a contact among the complete list of all the contacts entered in the application.