When we reprovision the sidecar, it overwrites the 12 keys on the main phone (lineKey.1, lineKey.2, ... lineKey.11, lineKey.12), even if we don't specify linekey 1-12.
Is there any way to reprovision the sidecars (lineKey.13, linekey.14...) without overwriting the main phone keys?
I guess my question is, if I don't send a linekey value, for example, linekey 15, will it overwrite what's there now if we change the lineKey section in the configuration file?