You need a Peppol Access Point for the connection to the Peppol network. Such a connection is provided by a Billing Service Provider (BSP) like eConnect. This is best compared to a telephone provider. If you want to call or use the internet on your phone, you need access to the telecom network. For that connection, you need to go to a telecom provider like KPN or T-Mobile. This is how e-invoicing works on the Peppol network. Every eConnect customer has standard access to the Peppol network.