Can the card in gprs wireless network card be placed on the mobile phone to make a call?

It can be used in theory, but it can't be used in practice. The analysis is as follows: GPRS is an Internet and telephone service and a G-network service, but this number analysis is not done when the number segment is done in the switch, so it is actually impossible to make a call. In the field of communication, we add the identification code of your mobile phone to the MSC of the switch. For example, we add ESN to the number segment of the device, so that you can make a call without inserting a SIM, just like the test mobile phone that our communication personnel often use, and there is no need to install a card. What's more, the charging method is different.