I am new to RC and am having difficulty completing a basic transfer of calls to various intercom extensions. I have followed the step by step directions in the user guide but when I hit intercom and their extension I get music but it does nothing on their end and the caller is left on hold waiting while I am trying to transfer the call for much longer than necessary. Our phones are set up for default consultative transfer as we prefer. Not blind transfer. Do I need the settings changed or am I not doing something correctly?