For those interested in the Acme Packet BCP documents, they are steadily reemerging as they are being updated with new content.
Previously they were available to customers who had access to the Acme Packet TAC portal. Fortunately they are now available to anyone who has an account on the Oracle-Acme Packet Community site located here.
Also worth noting is that all Acme Packet product documentation is publicly available here. Enjoy!