atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Telecom Service & Providers Caller id issue

was there any foriegn voltage from the co to the demarc, sometimes this can prevent caller id to work but still allow the phone to work, also did you here any static or humming on the lines?

He says the lines were tested at the LEN, with (still waiting for confirmation of this fact) the cable pairs open at the MDF.

I am not trying to be scientific. My customer's complaint is, occasionally, the caller id feature is not working. It is not only land line calls, but also cell phone calls that are not displaying the information. 95% of my calls were made from a land line. I only used the cell phone when my co-worker who was helping me was called to another job. As stated in previous posts, all lines which extend beyond the oe(office equipment, or len) have been removed from the circuit for testing.

I think you've done about all you can, from the outside tech standpoint. I do admire the "want to help the customer" attitude. The part that really makes it hard is not all lines are in the same module and from what was stated other lines in the same module have no problem. Looks like one for the engineers to me. When I worked for the big boys they had a datech group for just such problems.

Thanks for the help!

As of today, after extensive testing using an actual caller id equipped phone, we have determined that there is in fact no trouble with the caller id on our facilities. I spent the whole day testing first at the central office, then in the remote terminal, and finally at the customers demarc. Out of about 200 calls, not one failed to provide the data. I tested with two of our technical managers, and calls were placed from Columbus, Indy, Michigan, and Cleveland. We are satisfied we have no trouble on our facilities. Of course the customer does not want to hear it, though. We suggested a vendor meet to him, between his system people and us, at his expense. I have personally spent about 28 hours on this myself, and others have been out as well. Thanks for the help, again.

Thanks for the update.

Absolutely, thanks for the update.

It's nice to know there are people that take pride in their work too, or maybe it's OCD , but either way... if you have tested it at every point up to the demarc with multiple calls, then the customer and vendor can't say there is any lack of proper troubleshooting on your side. The problem is after the demarc = customer wiring and or CPE.