According to reports, ZTE's optical network products have been widely deployed in over 100 countries worldwide, with the establishment of more than 600 networks exceeding 100G, including ultra-high-speed networks. The total length of these networks has surpassed 600,000 kilometers. Notably, in 2022, ZTE assisted Turkcell, a leading mobile operator in Turkey, in completing the industry's first OTN network deployment with a 12THz ultra-wideband spectrum evolution capability in Bursa, the fourth-largest city in Turkey. Furthermore, in early 2023, ZTE partnered with China Mobile to successfully conduct the world's first 400G QPSK field trial, achieving a total transmission length of 2,808 kilometers for ultra-high-speed data transfer. Simultaneously, they also set a global record for the longest 400G QPSK terrestrial cable transmission, covering a distance of 5,616 kilometers without electrical regeneration.