Yes its possible to migrate TCS registration from VCS to CUCM. You have to make trunk between cucm and TCS.Below configuration need to be done on both TCS and CUCM side.
On CUCM
Configure SIP Trunk between TCS (i.e TCSTrunk)
Configure Route Patterns for recording alias (i.e. 440X and select SIP trunk from “Gateway/Route List” pull down list)
On TCS
Configure SIP address (URL) on recording alias (i.e.4401@172.16.1.50:5060, assume 172.16.1.50 is CUCM IP address and using TCP for SIP signaling).
Please follow below document for reference integration purpose.