hi this old model that came korea was given me headache....after all needed to be program the last thing and most important is the smdr....thier is port SIO-A and SIO-B. the SIO-A for pcmmc and SIO-B for smdr, i didnt understand manual since it was a korean manual...but their is some other english noted so i just follow the default value......in so many times i try all configuration but always fail to print instantly....i didnt know what was wrong....does anybody knows this kind of pabx system? i appreciate all the help.....thanks in advance