The Jabber ID (or user name) consists of two parts: nickname and domain name where you would like to have your account. It's quite similar to e-mail address, but with XMPP server name after @. It look's like firstname.lastname@example.org or email@example.com. Our services now give only @ulloo.net domain, but if you have your domain – you may registered your domain ( here ), and take Jabber ID like firstname.lastname@example.org
Now you have to register your account - you can do it here on this page .
Now there are a lot of clients to communicate using an XMPP protocol. Most of them are Free and suitable for various operating systems and devices. On this page, you can find a brief list of clients.