I am under the impression that to set up an extension to transfer to vm (in a SX200 with AVT) on busy/ring no answer it had to be done at the phone. Something like #4 to transfer and then another code for busy/no answer and then the speed dial or lead number for voicemail. But I am unable to find in Feature Access Codes the commands for any of this. Any suggestions where to look for this information? Thanks.