This advanced and user-friendly IP-based access control system is made up of door controllers, card readers and/or code tables, electrical locks, push buttons and power supplies. Two doors can be checked single-sided or one door double-sided per door controller. Access can be authorized by means of a tag or code. An unlimited number of access profiles based on time zones can be programmed. It is also possible to program a tag or code for a preset period of time and/or to give this tag or code access a maximum number of times.