Hi Curtis Gambill,
I think at present you are trying to connect through port "4900", just give a try with port "554" and check if it connects.
Note: I have tested Nuance 9.0 with UCCX 8.5 with the port "554", it works, and not sure about this in UCCX 7.x series.
Port
TCP port numbers used to connect to a MRCP server:
Nuance SWMS Server - 4900
Nuance MRCP Server - 554
IBM WVS - 554
Hope this helps.
Anand