I installed a new branch office, wich a local CCM. Conf call on the IP phones don't work.
I have tested it with the "ad hoc"
mode (when I am online with someone, I push the conf button, then type the nuew number, then I 'm online with the new person, and when I try to make the 3 pers conf by pushing the conf button again, I loose the first person ) The message "unable to make the conf" appears on the IP Phone screen.
Do you have an idea where the problem could come from?
Thanking you in advance