unjoin
/ʌnˈdʒɔɪn
/verb [with object] archaic
Detach; separate.Then they open their eyes, and attempt to unravel the knot they've made, without unjoining their hands....
- Your suggestion of unjoining callers from a conference and playing the dialog to them will work as well.
- The only way that I can get the computers to recognize the domain again is by unjoining and rejoining the domain.