have a setup with Unity 5.0 integrated with exchange 2007 CCR cluster , AD & CCM 6.1 . This is new installation. Everything is working fine ,but MWI does not works.
On subscriber page in Unity administration , "MWI is failed" message appear in message page under MWI section , even after some refresh being done .
I have checked the "use MWI for message notification" option in under message in subscriber page.
No CSS issue it seems.
I can keep & retrive messages through phone, no problem . I can dial MWI DNs for ON & OFF , so i can see light is turning ON & OFF , when I dial those DN numbers by phone.
I have done self enrolment for subscriber too using the phone after importing unity subscriber in Unity administration.
Do anybody have any idea what has gone wrong here ??