It means your phone is locked because you've entered your PIN (Personal Identity Number) wrongly three times. You need to call your network provider (from another phone) and ask them for the PUC (Phone Unlock Code)
Only if HE calls you. They may make allowances in case of an emergency involving a close family member.
* The only legal way you can intercept phone calls is by the operator if it's an emergency. The operator will cut in on the call to the person you are trying to contact regarding the emergency. To intercept one's phone calls in any other way is against the law.
Since you have no service connected to a phone network.
Using emergency calls should not count towards a person's cell phone minutes. This is typically only limited to 911, and does not include suicide hotlines or anything.
In case of an emergency, one can unlock the 3 Sim Card by simply awakening the phone and pressing the emergency button at the bottom of the screen. In emergency mode, only emergency phone calls can be made.
The sim card only holds informations that the phone uses to authonticate to the network, the network checks if the user is registred with them and if he has credit then, allows him to make the call or not. For an emergency call, the network directly redirects the call to an emergency desk without checking your identity. Summery: you have all what you need to make calls on your phone not on the sim card
only 911
using redsn0w
the SIM is not properly installed or your service is not active.
It means YOU MAY CALL 911 (or respective emrgency number) its for when there is service but not YOUR service
If your SIM Card is not inserted or is not seated properly, it may cause your phone to only allow calls to 911. Ensure your SIM Card is securely inserted into the slot. It may not hurt to remove it and re-seat it. frpfiles.net/2021/04/z3x-box-samsung-tool-pro-latest-setup.html
This depends on your carrier and plan. If you have no carrier, you may only make emergency calls.