DLink DIR-615

I've just spent about an hour on DLink DIR-615. This piece of ... hardware just didn't want to establish PPTP connection with my provider (BeeLine). Luckily after about two hours of tambourine dance, I'm on-line... Firmware update from 3.02RU to 3.03RU solved my problem. And I can't find how to enable telnet access on this device. It's awful - I have to configure router using my browser...
At least, this device has a very pleasant price - about $50. This is its best feature...