We have a waste scheme in a remote area of New Zealand. It is controlled by a Zelio control unit. This produces text messages of water flow and alarms that are sent out via modem over a Vodafone cellphone network. We have lost cellphone coverage in the area. We do have Wifi in the area. Can we source a device that will pick up the serial message information going into the modem (think it is an RS 232 cable) and convert it and send it out via the Wifi network as an email or other internet protocol message ?