In Xenocide, Ender visits the Hive Queen with Miro and Valentine. At one point in Ender's conversation with the Hive Queen Jane accuses him of cheating, because she can't hear the Hive Queen's conversation.
Then, in Children of the Mind, it seems like Jane suddenly does have some way to speak to the Hive Queen. When Miro visits the Hive Queen, she mentions that she and Jane are searching for a greater danger and that she had discussed taking young Valentine's body for herself. It seems now Jane is suddenly able to converse with the Hive Queen whereas before she couldn't.
How is she doing this? (This is before taking possession of young Val's body).
P.S. And I don't think it is through philotic twines. Human (while conversing with the Hive Queen) doesn't use her as an example when he talks about how fathertrees and queens can do it.
And Human says
Maybe Jane is listening to us now.
To which the Hive Queen replies
No, I'd know her if she were linked to us. Her shape was made to fit too well with mine for it to go unrecognized.