Source: https://www.proximus.be/dam/jcr:3e89e184-f669-4dd2-956e-fe4c9cac21cf/cdn/sites/iportal/documents/pdfs/res/contractfiche/contractfiche-en/Pack-business-customers/CS_Pack_BusinessFlexEssential_EN~2022-07-01-07-54-09~cache.pdf