Hi I encountered the error message “Error Opening Com Port” on PC. That PC is used for PBX System and PBX (Panasonic Digital Super Hybrid System KX-TD500 version 2.5) uses RS 232 serial interface for the connection with that PC.I already checked both 25-contact and 9-contact connectors and all are good conditions. And I use Win Tariff Software for recording telephone calls and this software cannot record telephone calls since the above error appeared. How do I solve this problem? Anybody help me, please. Thanks in advanced for your help.
The first steps in troubleshooting that problem are:
Perform each of those steps in that order. After each step, try to see if communications is restored. The steps are ranked (approximately) by ease. Don't omit any of them even if you try them in a different order (stop, of course, if one reveals the source of the problem). I'm assuming that you've had this setup working properly before.
If those steps don't narrow down the source of the problem, then you may have a defective CPU card.
I have some experience with smaller Panasonic Hybrid systems, but no current access. I don't have any experience with Win Tariff.