Creating a phone in asterisk

I'm not going to get too deep into this.

You will need to create a SIP phone in your asterisk box.  I wont explain how to do this via config files in asterisk.  Its just annoying.

For those of you using FreePBX distro, you will want to create an extension in your PBX and assign it a "secret" (aka Password)

Once you have done this, save/apply/reload the changes as necessary.