We proudly announce that after a long, but successful integration procedure the IDGF Operation Centre (OC) became fully operational and part of the EGI grid infrastructure. All necessary teams and tools are established in IDGF Operations Centre and ready for production. The integration procedure was done by MTA SZTAKI in Hungary. From now on, international volunteer grid infrastructures may join to the EGI grid infrastructure through the IDGF OC as a resource site and may offer their computational capacity for the European scientists. The IDGF OC opens the door for desktop grid and crowd computing infrastructures to support international research in many scientific disciplines.