Is there a way to transfer a caller to someone's mailbox without the VM Transfer key?

Transfer to 500 (or whatever voicemail ext is) then *6 and mailbox number.

One little gotcha is it won't work correctly if your using company greetings since it doesn't accept DTMF during the company greetings.

Thanks Dalavar. By reading the operating manual I found my solution. I needed to know this because I had a bunch of 12 button phones that didn't have room for a vm transfer key, just 10 lines, page all and vmail. But I found out that the vm transfer key will let you access your mailbox like a vm button does. So I changed everyone's vm key to a vm transfer key and they use it to access vm and to do vm transfers.