Türk Telekom

• TURPAK systems, which allow our country to establish fast and easy connection with the information resources of 65 countries from USA to Japan, create an economical communication environment for all of our provinces.
• TURPAK can carry out many calls over a single circuit by means of virtual circuits. When one of the network links or switching units fail, it continues data communication over alternative links without any defects.
• Since it is constantly tracked by control centre any malfunctions can be repaired immediately.

By issuing network user ID and password to the user, usage of unauthorised people is restricted. It allows only making calls with “incoming call restriction”, it doesn’t allow being called. It allows the user only being called with “outgoing call restriction”, it blocks calling operation. And with “closed user group”, it is possible that only certain subscribers can communicate with certain conditions.