How can you spoof you caller id but not using a voip (your carrier instead)?

My research:
I found this security stackexchange post but it didn’t answer my question.
I know that you can do similar things using astresik with voip provider.
I came up on o blog that explain that sim card is computer ect.. link
But can … Continue reading How can you spoof you caller id but not using a voip (your carrier instead)?