We are about to release a product called the Cisco Unity Rolm Integration Gateway which will provide a means to integrate with the Rolm 9751-9005 (excluding Model 80). This will be a serial integration with Unity. The product is due to release near the end of the year. Feel free to email me at mrmccann@cisco.com if you'd like more details.
There is no other way to integrate Unity with this PBX.
Mike
