Anybody using the ST500 on 3G/LTE?

We have it working on wifi but now looking to expand it outside of the building. Manual says "Communication in 3G/LTE environment requires UNIVERGE Internet Extended Extension “dokodemo”
Services."

Anybody have it working on the cell network? Any pointers or more detailed information to set it up?

I can tell you this, when you set it up for cell phone connection you have to turn off the wifi in the smart phone to test. It doesn't matter if the only profile in the ST500 is setup for cell connection, WiFi in the phone has to be off. I am in the process of working with a customers IT tech involving a watchguard router and it's not going well, I can connect on the local WiFi but not over the cell.

I looked at the ST500 and I have no idea what NEC was thinking when we have the MLC. The watchguard is a PITA. The fact the MLC can do NAT now is a cherry on top.

OK. maybe we will look at MLC instead.

Anybody set up this with an SBC (BX800)? Been tasked with this and slowly working through it but not yet turned it on as we already have teleworkers and I have to wait till they visit the office so I don't interrupt their service.