HP MSR 4-port FXS / 1-port FXO DSIC Module
HPE MSR 4-port FXS / 1-port FXO DSIC Module, HP MSR, 19 oz (540 g), 4 x FXS 1 x FXO
HPE MSR 4-port FXS / 1-port FXO DSIC Module. Compatibility: HP MSR. Weight: 19 oz (540 g). I/O ports: 4 x FXS 1 x FXO