This might be of interest to some of the writers in this thread:
http://wiki.forum.nokia.com/index.ph...o_Proxy_Server points to a page where APS is available for download for even non-FN PROs. Apparently the distribution policy has been changed.
Notice though that
http://forum.nokia.com/main/platform...solutions.html which says "Audio routing and mixing with an ongoing voice call cannot be done without Nokia Audio Proxy Server (APS). Using APS will also require MultimediaDD capability. This is due to a hard-coded Vendor ID check in the mixing policy between third-party players and the native telephony application."