vbdude

Hello, There are a few questions I have about this software. I have been really enjoying what I have been seeing with it so far! 1) I want to call extension 105 from my SIP Phone, extension 100. Can I dial a internal extension? How do I do this? 2) When a customer calls, I would like them to be able to easily reach my extension 100. Can I have it so that when after they dial my companies phone number, they can enter the extension number and be transfered to my extension? However, I don't want my extension number to be heard or anything. Thanks!