4 x POTS Telephone Over Ethernet | LAN | IP Extender - Converter - FXO and FX...
Even if you have a simple fiber optic cable run, and want to send the FXS/FXO POTS voice traffic over it – then as well – just install 2 matching SFP 155M (100FX) transceivers into the FX ports, and simply connect to fiber at both sides.