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ADVENT-MÜREN-SYS AKS Project is a project that aims to provide the national heavy torpedo AKYA firing capability to GÜR class submarines. This project aims to develop the ADVENT-MÜREN Combat Management System (SYS) by combining the ADVENT and MÜREN Combat Management Systems. Within the scope of the project, the firing capabilities of the GÜR class submarines will be strengthened, thereby contributing to our national defense strategy. ADVENT-MÜREN SYS will increase our maritime security by enabling GÜR Class submarines to launch AKYA torpedoes effectively.

Considering the future importance of this project, ADVENT-MÜREN-SYS is planned to be used in Gür Class Half-Life Modernization and national submarine development activities. In this way, our submarines will have a more effective defense capability with the most up-to-date technologies.

ADVENT-MÜREN-SYS AKS Project stands out as a success of our national defense industry. This project will strengthen Turkey's submarine capabilities and make our presence at sea more effective. It will also contribute to the development of domestic defense technologies.

Successful completion of this project will increase Turkey's independence and security in the field of submarine technologies. ADVENT-MÜREN-SYS AKS Project is considered as an important turning point in our defense industry.

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Competence Centers

MILSEC 4 - Secure IP Terminal


While the MİLSEC-4 terminal offers an up-to-date solution for next-generation secure communication (voice, data and video) in IP networks, it provides an uninterrupted communication service by maintaining the compatibility of secure voice communication in PSTN networks with PSTN secure phones in use.

Configuration, surveillance and software update processes of MILSEC-4 terminals are carried out securely remotely using the Security Management Center (GYM). MİLSEC-4 terminal is capable of IP Network Key Loading (IPAAY) through secure communication with GYM without the need for an additional device.

MİLSEC-4 terminals are interoperable with MİLSEC-1A and MİLSEC-2 phones and offer the opportunity to replace MİLSEC-1A and MİLSEC-2 phones without interruption in the gradual transformation of PSTN networks to next generation IP networks.


  • End-to-end secure voice communication in PSTN networks
  • End-to-end secure voice, image and data transmission in IP networks
  • NATO SCIP compliance on IP networks
  • Compatibility with commercial SIP products
  • Interoperability with MILSEC1A and MILSEC2 secure phones
  • National and AES crypto algorithms
  • Remote software update
  • Easy operation with touch screen

It is subject to the sales license to be given by the Ministry of National Defense.