UCA to 3rd party device

[irongladiator]

Hello all,
I was curious if anyone has done this (or if you know can Mitel can even do this?):  Can you configure the UCA client to a 3rd party SIP device like a Polycom IP Conference Phone. So that it would act the same way (with regards to call handling) as if it was connected to a Mitel IP phone.

Thanks,
-Iron