The Trans-Caspian Fiber-optic Cable Line features a 380 km fiber-optic line across the Caspian Sea, connecting Sumgait (Azerbaijan) and Aktau (Kazakhstan). The Desktop Study is a comprehensive pre-engineering analysis of. Mobile apps, smart grids, TV & video on demand, telemedicine, intelligent vehicles, trafic information systems, Industry 4. 0 – the need for high-perfor-mance glass fibre cables to create a reliable broad-band infrastructure is constantly growing. The project is being implemented by AzerTelecom, a backbone. Monitored from 2026-05-28 through 2026-07-07 - live ICMP round-trip time measurements via RIPE Atlas probes. All values below are recomputed daily from raw probe data.