A "No disposition" filter in the All calls-Call logs section should be present.

Detailed Explanation of the Request: The user wants to use the filter option in the call logs to select all the calls that don't have any disposition set. As of now, under the Disposition filter option, we have the option to select all the available dispositions in the account as an option; however, there is no option to select '-' or null to pull up calls that don't have any disposition.