Success with Sonoff zigbee bridge and zigbee binding

Has anyone succeeded with rfc2217 instead of socat ? I’ve tried and failed. Here is the log

2021-02-04 17:32:42.804 [ERROR] [nding.zigbee.serial.ZigBeeSerialPort] - Serial Error: Device cannot be opened on Port rfc2217://192.168.129.132:8888. Caused by Unable to establish remote connection to serial port rfc2217://192.168.129.132:8888
2021-02-04 17:32:42.806 [ERROR] [zigbee.dongle.ember.ZigBeeDongleEzsp] - EZSP Dongle: Unable to open serial port
2021-02-04 17:32:43.816 [INFO ] [bee.handler.ZigBeeCoordinatorHandler] - ZigBee dongle inactivity timer. Reinitializing ZigBee
2021-02-04 17:32:44.930 [ERROR] [nding.zigbee.serial.ZigBeeSerialPort] - Serial Error: Device cannot be opened on Port rfc2217://192.168.129.132:8888. Caused by Unable to establish remote connection to serial port rfc2217://192.168.129.132:8888
2021-02-04 17:32:44.931 [ERROR] [zigbee.dongle.ember.ZigBeeDongleEzsp] - EZSP Dongle: Unable to open serial port
2021-02-04 17:32:49.935 [INFO ] [bee.handler.ZigBeeCoordinatorHandler] - ZigBee dongle inactivity timer. Reinitializing ZigBee

I’m able to open a telnet session with 192.168.129.132:8888

Edit: probably does not work, see #577