You may want to get in touch with Mark Reddick, the telecom tool developer for ESRI. He can fully go over the toolset functionality, so you can decide if you want to upgrade your ArcGIS desktop license. email@example.com
I work for a small municipality with underground fiber service to commercial customers. We've incorporated the ESRI telecom model and tools to inventory our fiber infrastructure. However we have reached the limits of its capability and are window-shopping for a more robust Fiber Management Solution. Given our size and budget we are focusing on Crescent Link and 3-GIS.