I have a problem with my deployment. Currently we have deployed over 1500 phones using 1 publisher and 3 subscribers. We're using CCM 4.1(3)sr4d and the IP phones 7911 and 7961.
Some users complained that some phones can contact him, but some others can't contact him and an announcement "Your call cannot be completed. Please consult your directory ..." is heard by the caller. All directory numbers in the company are in the same partition and included in every CSS I made. The problem resolved when I ask the user to log out and log in again at the phone. This happened quite often in my client. Although this is resolved, I can't ask users logout and login every time the problem occurs since this won't stop the problem from occurring. I think this problem may come from extension mobility feature or a large number of users. Can someone help me on this problem ? I really appreciate any help.
Thanks a lot,