Digital Signature
Department of authenticity, legally significant since the Act of March 20, 2000, and which ensures the identity of an entity or the origin of any communication or file.
SIM
Card entitling its holder to customize terminal undercover.
SIM
Acronym Subscriber Identity Module. A SIM card means the smart card that fits into his mobile phone so it can connect to the network of the mobile operator. It identifies the subscriber personally and includes information such as phone number and everything on the network operator and subscription.
Simplex; to the PTT
Describes a mode of operation in which the transport of information can occur in both directions but not simultaneously between two points.
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