In Sales processes there are numerous inbound and outbound calls happening day in and day out. While the messages are important for communication, it is difficult for businesses to organize and record them. Crucial business leads can be compromised unless your CRM tools is equipped with features to handle inbound and outbound calls.

In odoo you can handle and classify your inbound and outbound calls with following operation. Find the screen-grab as reference.
Navigation guide- Sales>> Configuration>> Phone calls>> Categories.