hi all,
I have a query about expressway infrastructure.
we have a standalone expressway.
expressway C is in one UC Server and Expressway E is in another UC Server
all vc devices are registered in expressway C.
last week expressway C went down, so we are unable to make calls because of lack of backup server.
now customer asked to implement backup server for expressway C and E.
What are the pre requisites according to our structure?
licensing part and any other things needs to be checked?
i have attached our diagram
Thanks in Advance
