CONNECTION_ALIAS_FLAG_USER_SET

The aliases of contacts on this connection may be changed by the user of the service, not just by the contacts themselves.

This is the case on Jabber, for instance. It is possible that aliases can be changed by the contacts too - which alias takes precedence is not defined by this specification, and depends on the server and/or connection manager implementation. This flag only applies to the aliases of "globally valid" contact handles. At this time, clients should not expect to be able to change the aliases corresponding to any channel-specific handles. If this becomes possible in future, a new flag will be defined.