Blocking phone numbers from reaching you on the Orange network is a simple task using the phone's menu options. This is a free service that lets you block phone numbers. Additionally, you can restrict outgoing calls.
Press the "Call" key followed by the "Menu" key.
Select "Options," then select "Call Barring."
Select the option to block incoming calls.
Press the "Menu" key and select the "Enable" option. Your phone will prompt you to enter the call-barring password.