I fielded incoming calls concerning Windows mobile devices from end users who work for Crossmark. Typical calls come from users who had issues with syncing live data to Crossmark servers. I would remote into their personal computers and determine what the root cause is if basic devie and PC troubleshooting failed. I also helped link the device to wireless networks and supported the propiertary work application.
The management was great, sometimes hard to speak to about major issues since they had a lot on their plate. The co-workers were excellent, very good troubleshooters and customer support agents.
I found the hardest part of the job was working with the client's internal departments about special issues and the easiest part is gaining agreement on what the issue is since there are a limited amount of issues I supported.
I learned the Windows Mobile OS pretty well.