I am using a mitel MXEIII controller with software version 7.2. I noticed that some Teledex SIP phones are showing "Out of Service" while they are functioning. I mean you can call them and get calls from them. But in the All IP Phones Inventory they are showing Out of Service even you refresh data.
Can some one help to fix this issue, please?
I am using two MXEIII controllers for resiliency. I've noticed this the first time while testing the resiliency (half of SIP phones where Out of Service) while you can communicate with them on each controller.
In the attached example the extensions (2901 and 2912 etc...) are perfectly reachable.