Source: https://www.proximus.be/dam/jcr:24f4be90-8d5f-467d-83a1-4ef701b39c6b/cdn/sites/iportal/documents/pdfs/res/contractfiche/contractfiche-en/Pack-business-customers/CS_Pack_BusinessFlexPremium_CallConnect_EN~2022-05-02-06-33-19~cache.pdf