MMS stands for Multimedia Messaging Service. It allows you to transfer a file between two phones via message. This is an outdated system that is being hardly used anymore. It is not possible to send or receive MMS messages with a Mobile Vikings SIM card. Of course, you can still send pictures and images through e-mail, Messenger, WhatsApp, …

If someone tries to send an MMS to your number, you'll receive a text message including a link to view the MMS online. You’ll have to log in on this website by using your phone number as username. Enter 324… instead of +324, 00324, etc. The password can be found in the text message you’ve received.

If it’s not possible to check this website via your smartphone, it should be a better option to go do this on a PC instead. An MMS will be valid on this website for one month. Afterward, it isn’t possible anymore to log in to watch the message.