Envision-Discovery-Questionaire v2: attendant console
I think it would be good to "Attendant Console" under: "3.6 Lync 2013/Skype for Business Server Deployment On-premises Details (if applicable)" and "Which of the following Voice calling features do you currently have dependencies on?
Please add additional details for any dependencies in the comments section." page 17 & 18.
Or it could be under the next point: "What 3rd party provided features and functionality do you currently have dependencies on? Please list." page 18
3rd party category's (Contact Center, Attendant Console, Call Recording and Compliance) are all mentioned except the attendant console which is a common need.