We no longer distribute phone numbers. Other users may call you using your FireRTC username. Additionally, you can receive calls using your SIP address (your_firertc_username@sip.firertc.com). Finally, if you want calls from regular phones, although we no longer are offering phone numbers, you may get a free number from CallCentric (http://www.callcentric.com/dids/free_phone_number) and point it at your SIP address.
How exactly do you point a number at your SIP address?
Inbound calls are not currently working. Should be corrected next week.