Hi, I did an upgrade of my CM413 last night and found out that some of my ip phone (7940 model)kept their connectivity while the publisher was down (I also have 1x subsriber) but for model #(7941 and 7970) those phone went down while doing the upgrade to the pub and sub server.
I see on the 7940 via the network configuration 2 CM, 1 active and 1 standby.
But for the 7941 and 7970 I don't!!!
How can I have my ip phone 7941 and 7970 fall back to the subriber when my publisher is down for maintenance?