We have six sites with 3300ICP's that are networked (clustered). Five of the plants have 5324 / 5312's hanging on their 3300ICP. If we make a plant to plant call (4 digits and each site has a different site number), the number and name display. For example, 4100 Joe User. We recently installed our final 3300icp at our corporate office. The Corporate 3300 was made the master in the cluster (even though we are not really clustering...I will explain later). We have 5340 / 5330's hanging on this 3300ICP. Our extensions at corporate are 4200 and site number is 50.
If we dial plant A(41xx..Site 51), B(43xx..Site52), C(44xx..Site53), D(45xx..Site54), or E(46xx..Site55), their extension and name displays on our phone(5330), but on their handset(5312)displays only the number '504201'. If the end user at plant A, B, C, D, or E dial our extensions, their display only the '504201'.
We have one user in a separate CoS to keep the 'big lamp' from flashing (Ext. 4221). When I dial this number from the plant A,B,C,D, or E, the number and name display. I know turning the big lamp off is not the fix and I really have not had an opportunity to look at the differences between the CoS that all of the other 50 users are in versus the 1 user in the No Big Lamp CoS.
Our clustering is turned off. We have T-1's connected to a MPLS network and a 10mb MetroEthernet connection at corporate. Our Mitel technician feels that we do not have enough bandwidth to turn on the 3300 clustering and blames that for the 5312 / 5324's not displaying the corporate extension and name correctly.
I know it is going to take me a day to figure it out (I am a Systems Admin only....amateur Mitel admin). Have any of y'all ran into this situation and could give me a definitive setting to look for.
Thanks again for your time and assistance!!