Google Talk is now speaking to other Jabber servers, nearly six months after the company released the instant messaging application.

Open federation is now part of Google Talk, meaning the software can communicate eith other Jabber-based instant messaging clients, according to Google's developer FAQ.

This enhanced interoperability is a departure from the software's initial incarnation.

Google Talk was released as a Google Beta in late August to much fanfare.

But it was missing one key critical feature: The ability to communicate with other Jabber XMPP servers.