Zycoo’s PBX-U20S is a 2 port FXS IP PBX system that supports 32 users and 15 concurrent calls. This unit includes a single FXS module providing 2 FXS ports for Analog extensions. The PBX-U20S is a fully-featured mini Asterisk IP PBX system designed for small to medium enterprises.
*Note: No FXS module included. This unit is not compatible with Yeastar Modules.