en.Wedoany.com Reported - Nokia has announced that it has been selected by Symphony Communication Public Company Limited (SYMPHONY) to upgrade the Malaysia-Cambodia-Thailand (MCT) submarine cable system using its optical network solutions. Legacy equipment will be replaced with Nokia's submarine line terminal equipment (SLTE), based on sixth-generation Photonic Service Engine (PSE-6) coherent optical technology. Upon completion, the upgrade will deliver up to 30 Tbps per fiber pair, three times the capacity of the legacy system, while providing low-latency connectivity between Thailand, Malaysia, and Singapore. This supports advanced real-time scenarios such as artificial intelligence (AI) inference, cloud bursting, and mission-critical enterprise applications. The upgrade also reduces the carbon footprint by improving power efficiency, helping submarine network operators achieve their sustainability goals.
The MCT submarine cable is the only undersea system landing in Rayong Province within Thailand's Eastern Economic Corridor (EEC), a region that has become a core area for AI-driven data center investments in Thailand. According to data from the Thailand Board of Investment (BOI), Thailand is accelerating its development as a regional digital infrastructure hub, having attracted over $23 billion in data center investments across 36 projects. This growth has drawn multiple global hyperscale cloud service providers, which require reliable, high-capacity connectivity routes. The upgraded MCT submarine cable will provide critical low-latency and sovereign connectivity, meeting the region's growing demand for secure, high-performance submarine infrastructure.
Nokia's PSE-6 solution leverages advanced 5nm DSP technology and intelligent signal optimization to enhance capacity and efficiency while supporting long-term scalability. The solution offers direct, high-capacity, low-latency connectivity paths for enterprises, OTT platforms, and AI and cloud providers, while reducing network power consumption by 60%. The deployment is also supported by Nokia's WaveSuite optical network automation platform, which provides a unified management dashboard, improves multi-layer network visibility, and enables cross-domain automation, thereby supporting sustainable energy optimization, full lifecycle operations, and network resilience in high-performance end-to-end connectivity.
Ajay Sharma, Country Manager for Nokia Thailand, stated that the company is pleased to extend its partnership with SYMPHONY from terrestrial and cross-border networks to the submarine domain. This upgrade helps deliver advanced, trusted connectivity in Southeast Asia and supports Thailand's ambition to become a regional hub for AI and cloud-driven digital services. Alex Loh, CEO of Symphony Communication Public Company Limited, stated that the MCT upgrade underscores the company's commitment to continuously improving network performance to deliver the best customer experience. Leveraging Nokia's submarine network solutions, the company will provide unparalleled capacity and reliability, positioning itself as the preferred connectivity partner for hyperscale cloud service providers and enterprises, building a next-generation digital infrastructure hub in Southeast Asia.
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