I have a computer which controls access to a building, which while it has electricity does not have a phone line. We want to upgrade to a Paxton Net2 system whereby each person has an individually coded fob. With this system we can activate fobs as people come, and more importantly deactivate them if they go and don't return the fob(s). This has become an issue as some former people who no longer have rights of access still enter the building. With Net2 we can update the user table remotely, but to do this we need to access the computer that is on site. A fixed landline looks expensive, particularly as we will only need remote access once a week or so. Thus my question is whether a mobile dongle or something could be used for remote access instead? If so, or even not, any recommendations on how we can solve this?