No, running "rundll32.exe dsquery openquerywindow" won't allow the "Telephones" tab to be added to the default query window. The " Telephones " tab is not one of the default tabs shown in the query window is the "Telephones" tab.
However, a couple of methods exist to use this service to let customers change their phone numbers. One approach is making a custom query that only returns the telephone number attribute. Then you may give the users a shortcut to the query you created. Consumers can change their phone number once they run the shortcut.
Utilising the Exchange Management Shell is another option to allow consumers to alter their phone numbers. The Set-User cmdlet can update a user's phone number attribute. The Set-User cmdlet can then generate a script that you can distribute to users. Their phone number will be updated whenever the users run the script.