Not sure where to place this thread.
I have a 3G capable laptop computer (lenovo x220). So I insert my sim card directy into the provided slot in the laptop to have broadband connection to the internet. This works pretty well.

The thing is that when my sim is in my computer I can not use the mobile phone anymore. Is there software that allows me to use the computer as a mobile phone while the sim card is in the slot and have all basic features of a mobile (receive calls, make calls, send sms etc.)? Or do I have to get a 2nd sim? One for my mobile and one for my computer?