I'm new to Cisco CCM and apps. I want to change a telephone Cisco 7971 for a Cisco 7975 but that is kept the configuration of the telephone. I have a CM v5.1.
The most you can do is to keep some of the Directory number settings. Before you delete the 7971, add the 7975 and put the same DN's on it. They will come in as 'shared lines' and most of the settings should be the same.
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