Is there a SMS platform in the detention center now?

According to relevant information, the query shows:No..

1, China's law stipulates that after a prisoner is put in prison, the prison shall notify the prisoner's family, and the notice shall be issued within five days from the date of admission. This is a letter to inform the family.

2. The letter generally contains the crime, the number of years of imprisonment, the address of the prison and the official seal. In order to ensure safety and formality, do not use SMS.