3900 ios gateway Software MTP

I currently have 3  Cisco 3925E    call manager clusters.

Cluster 1

Cluster 2

SME Cluster

I have two 3900 gateways currently connected to cluster 2 that are configured for as 500 software MTP's. That is all these gatways do now, nothing else.

I would like to share these software MTP's with the other 2 call manager cluster.  I do not see a way to do this.

 Is it possable to share the software MTP's between mulitple CUCM 9.x clusters?

You cannot share the same dspfarm. You can however create separate dspfarms (subdividing the total capacity in the process) and separate call manager groups which point to   Cisco 3945     separate clusters.