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Does Call Forwarding work with NoMoRobo turned on? I know it won't work with Do Not Disturb or Voicemail active, but there doesn't seem to be any information about whether Call Forwarding and NoMoRobo are compatible.
This won't answer your question because compatibility depends on the logical sequence an incoming phone follows through the Cox Voice Gateway. Each carrier has a different logic.
Nomo confirms a theoretical compatibility but hands off any real-world compatibility to Cox.