As you can read here the DICOM implementation (for transfers) was never really finished:
https://sourceforge.net/p/ecgtoolkit-cs/discussion/863552/thread/90ceee89/#5017

Back when I created the CGet I thought it would work, but I never found a PACS that implemented it. That meant I could never really test any of this code. All PACS systems I ever found only implement CMove which is a lot harder to do, because of all the configuration required both server-side and client-side.