Hello , I have recently install the 3CX system with Snom phones ( 720, 821 , 870 ) . The 870 and the 821 have Snom vision console. Both connected and working but i have a problem with the BLF and the Speed dial in the vision module. For some reason there not working properly and even when an extension is busy the BLF is not working and the Led is not lit. Even the speed dial don't work either. If i restart the vision its working but for a short time. Both Phones have the latest firmware and the snom vision has the 1.3.6 firmware version ( Beta ) . Please advise.