Can you check if the phones are running the latest Jan 2013 CU update 4.0.7577.4372?
In addtion, is the customer licensed for O365 Enterprise E3 or E4?
Can you check if the phones are running the latest Jan 2013 CU update 4.0.7577.4372?
In addtion, is the customer licensed for O365 Enterprise E3 or E4?