I have a laptop on which I run Ubuntu 18.04, the laptop has a built-in sim slot and I have a sim card that I use for mobile broadband.
Is there any software that I can use to send and receive sms messages, using the sim card that I also use for internet?
ofonowould be the necessary back-end piece to send/receive SMS. However, as already mentioned if your SIM is a data-only card, you won't be able to, not having a phone number assigned to it. – dobey Jun 06 '18 at 14:25