If you absolutely need six physical slots for a specific industrial use case (e.g., a mobile test lab), you will need to purchase a or a SIM bank router —a device that looks like a modem, not a phone.
: Reserve 3–4 SIMs for different business ventures, clients, or departments. Custom Notifications If you absolutely need six physical slots for
There are several benefits to using a 6 SIM: a mobile test lab)