A customer of ours used to have a WebEx Connect subscription which is currently expired. They are now deploying Collaboration Edge with on-prem IM&P services (CUCM IM&P) but Jabber still discovers their domain to be handled by WebEx Connect.
How can we get rid of the association between their domain and the WebEx Connect cloud IM&P services forever?
yes, I got this done through a Cisco Collaboration Solution Architect by asking him a favor.
He did that internally in Cisco (I guess by logging a case with the PM) and told me he didn't know of any official procedure for end users or partners.