ZYCOO 4FXO U50 U100 4 FXO module with 4 FXO interface Vtech as well as simplifies the

as well as simplifies the management and maintenance

Allows you to connect bulky transformers without blocking other outlets

OSD Up to 4 OSDs

traditional telephone networks (PSTN)

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ZYCOO 4FXO U50 U100 4 FXO module with 4 FXO interface Vtech as well as simplifies theZYCOO 4FXO U50 U100 4 FXO module with 4 FXO interface (Analog Trunk) The Analog Trunk FXO is an interface that connects to a trunk line, like the one from your service provider. It receives ringing voltage and battery from FXS devices. ZYCOO 4FXO U50 U100 4 FXO module with 4 FXO interfaces are used to connect your PBX to the PSTN. One FXO channel is required for each line you receive from your telco. The Analog Trunk FXO provides connectivity to