Source: https://www.proximus.be/dam/jcr:cd89ae6c-f6bc-4711-9da3-e410ddfd4fdb/cdn/sites/iportal/documents/pdfs/res/contractfiche/contractfiche-fr/Pack-business-customers/CS_Pack_BusinessFlexEssential__FR~2022-05-02-06-33-27~cache.pdf