Hi José, thanks for your reply, actually the issue is now solved, there was a problem with the configuration of another phone  . Now I am able to establish calls. I will start now testing and configur further functionalities like video and preseence....

Hi Jose,I am setting up Egika, and I was able to register Egika in CUCM, however, I cannot make or receive calls from Egika. Any ideas ?ThanksNadia