Can I make multiple outgoing calls at the same time?

Question

mobile connection

There is a gsm modem. And I want to make it so that up to 15 parallel outgoing calls would happen with one sim. Is that possible?

Answer 1

Only one connection (call) can be made through one radio module at a time. SIM through the connector will be physically connected to the radio module and cannot be connected to several modules in parallel. But even if you accumulate some kind of multiplexer for the SIM slot (a data stream is constantly flowing through the SIM for encoding / decoding, I can’t even imagine how to deceive this mechanism), the Network would still not let in a reconnection if there was an active connection with the same IMSI in this cell, that is, the second radio module with the same SIM will simply not enter the Network, and the Base logs will contain hacker activity associated with this SIM.