I originally wrote this for my company’s blog but wanted to re-post here as I get quite a few hits from my articles on XMPP.

While working with a client, it was made known they were using an OpenFire Jabber server for IM. Since we have Lync along with the XMPP gateway in order to communicate with GTalk users, it seemed fitting to make it work with OpenFire. That is where the fun began.

Got bit by the .NET 4 client again this week. Had a client ask me about installing the Pre-Call Diagnostic tool on a x64 platform as they couldn’t After trying to install on my box I kept getting an error about the UCMA Redistributal needing to be installed. I tried installing this manually and it would just bomb out.

Long story short, uninstalled and bam, the Pre-Call Diag tool installed just fine.

First, I’ll be honest, I love OCS. I have pitched it as a consultant up against GTalk. It is a superior product. It does way more but at times, I just want to be able to chat with a client that doesn’t have OCS yet. Almost everyone has a Gmail account. Well, thanks to the new XMPP Gateway for OCS I can achieve my wish.

Now, I’m not going to go into all the details on how to set this up. The OCS Team has already done a great job on that here. I did however end up having to do things a bit differently. We had run out of IP’s on the Internet connection on which our Edge server lives therefore I had to go with a dual-homed approach. I placed external interface on a different Internet circuit which had available external IP’s and I put the internal interface on the same DMZ as our Edge server (we are NAT’ing our Edge server).