Contact Center Client allow Callbacks button to Supervisors

[iggypops]

Hi,
We have following roles in Contact Center: System-wide Administrators, Supervisors, Agents.
Currently, in CCM client, under "Real Time" ribbon tab, "Callbacks" button is not visible to anyone except System-wide Administrator.

I could not find any option for allowing viewing CallBacks in "Your Site Explorer" > Security roles section.
Is viewing callbacks in CCM Client possible for non system administrators like supervisors?

[iggypops]

Just figured it out.
Needed to assign IVR Routing Device Configuration, Enterprise Configuration, IVR Routing Workflow Configuration with "Allow Read Access" radio option selected.