Incredibly useful, they give you a free number for receiving faxes that are in turn sent to your E-mail box so you can get faxes sent to you anywhere. They've also just upgraded their services so you can have you can retrieve your E-mail (faxes)via phone as well, and send voice messages to people through E-mail, and people can leave you voicemail messages at you j2 number that you can retrieve through your computer or via phone. Too many cool services to list, some (the more elaborate ones) have a monthly fee but there are lots of free services as well.

I just signed up for this service last night and it was one of the fastest and easiest things I've done so far on the web. First of all this service is free (at least for now) to receive faxes and voicemail to a free number that they give you and that you can retrieve through E-mail. I needed to have a fax sent to me but I'm away from home so I logged on and within about 3 minutes I had a number assigned to me, called the party who was faxing me and they immediately sent me the fax. Perfect! Not only that but the fax was very clear as well. Talk about convenient. I'd thought about signing up for months but just never really got around to it, now seeing how simple and fast it was I wish I'd done it much sooner.