atcomsystems.ca/forum Forums General General Telephone & Systems Information CID Problems

If the new lines are from a CLEC, are they coming in on a channelbank? If so, what kind? We've had some issues with newer Samsung units recognizing disconnect signalling & other little quirks. Can't recall any issues with CID, but there's only a couple of vendors in town who sell them.

Kyle may have something. I remember something about certain issue channel units for SLC96 that had problems passing CID. Also, is there any way that you can get the LEC to swap the cable pairs between the working CID & the one that doesn't work just to see if it makes a difference. I seen problems where bridge-tap or loading or a slight unbalance would block CID to a good quality phone but a cheap analog CID box worked just fine.

The lines with good CID are coming from the CLEC. The ones with bad CID are coming from the ILEC.

Seems like a silly question at this point, but does the line from the ILEC have DSL associated with it?

Have you compared the physical properties of the two lines (voltage, ring current, loop current, etc.)?

Loop Current?

Does the samsung have "line receive volume adjustment". Like Winetek said, that has been the issue i have adjusted to correct this problem on ESI systems.

Measured loop current normal. No DSL on the line. Ill ask samsung about line receive volume.

The ? about DSL reminded me of CID problem on ADIX. Believe it or not, the 'cure was a defunct buttset that had no transmit and was too cheap to bother fixing. Left it on line in monitor and CID would work. No amount of RC network juggling worked, although I'm sure there was a combination that would work. Just not $ effective when an old discarded buttset made everything work! So what I'm saying is put a buttset on line in monitor and then see what happens. The world of telecomm is sometimes strange to the max!