Hi @JuhaHaanpera, there are two ArcGIS solutions for telecom network management. Communications Data Management and Communications Utility Network Foundation. Communications Data Management leverages hosted feature layers and is used for basic asset mapping and high-level design planning. It does not leverage the utility network. Communications Utility Network Foundation leverages the utility network and supports fiber strand documentation and network tracing. This solution does not provide a splicing tool so the only way to create connectivity associations is by using the out of the box associations panel in ArcGIS Pro or the API, which is not ideal for managing many strands and splices, which is why many users leverage partner solutions.
Here are some resources to learn more.
Videos: https://storymaps.arcgis.com/stories/19fd6813361a4ff585b528f77843f88c#ref-n-qMOLvL
Utility Network vs Communications Utility Network Foundation: https://community.esri.com/t5/telecommunications-videos/tgi5-episode-070-utility-network-vs-utility/...
If you'd like more info on partner options, feel free to send me an email. phuls@esri.com
Solutions Engineer | Spatial Ninja | GIS ️ | Telecommunications