Your Polycom Phone supports two types of Call Transfers, both Blind and Consultative (Warm) Transfers. By default your Polycom phone will complete all transfers as Warm (Consultative) transfers. This can be modified in the phone settings (located using the HOME key).
To transfer an active call to another extension/external number using the default Consultative Transfer:
To transfer an active call to another extension or external number using the Blind (Cold) Transfer: