Another engineer works with a tech for an hour and a half on an IP Gateway device.
Programming looks good, Gateway is set up correctly, can ping back and forth on the network. but the Gateway will not come up.
We check the licensing on the software CD, and it is OK. We check in the PBX and don't see it. We go back and forth on what could be wrong.
After all this the tech finally says...
"Oh, guys, this software never got loaded. I wasn't here to do it and I guess no one did."
So after 90 minutes of troubleshooting with multiple engineers he realizes he hasn't checked the very first thing he should have checked BEFORE calling in.
I'm not bitter, just amazed.