Wireless connection to power meter

A customer writes:
“So I want to connect up a power meter wirelessly over IP. It (the power meter) used to connect to a phone line, picked up a phone call, and sent data back. Here’s what I’m doing:

  • power meter connects to LAVA POTS-to-Ethernet box
  • LAVA POTS-to-Ethernet box connects to a cellular router
  • I connect to the cellular router, which connects to the LAVA box, which “phones” the power meter
  • then the power meter sends its data to me over IP

The setup looks like this:

power meter connection

The power meter thinks it’s doing what it always did: connecting to a wall phone jack.”