Try to reach out our expertise which will help you to:

1. Setting up the latest Esri ArcGIS Enterprise with ArcGIS Pro, Portal for ArcGIS, Data Store and Utility Network.
2. Configure ArcGIS Utility Network to Map your Telco Models to developed model by “Esri Utility Network Product”.
3. Data Migration from the current GIS system to the Utility Network based on the telco model developed.
4. Provide migration scripts for largely automated transfer of network data to the Esri Utility Network.
5. Test of the provided Esri Utility Network functionality for documentation and information of the network data for your different use cases.

For more details refer to our Service page

http://teklabz.com/gis-services/migrate-to-esri-utility-network-communictaions-data-model-cdm/