For months now we have been trying to get our Caller ID working on this system.

We have an IVX-128-PLUS system
Verizon Centrex lines

Currently CID works intermittently.

I have monitored CID where the phone lines come into the building and CID info comes in at all times.

Verizon has tested our lines and says that all lines are showing CID correctly.

Our installer has looked at this and has had ESI look into it. ESI via our installer says the issue is with our voice provider (Verizon) and that the CID info is coming in too late. Verizon says CID info is all good and there is nothing they can do to change how the CID info comes in on our lines.

We recently had our older IVX-128 system break down and replaced it with an IVX-128-PLUS system.


CID issues are still the same.

We would appreciate any help on getting our CID work. I hoping others have encountered similar problems and that there is a solution.

Thanks in advance.

Petrus.

You need your Installer to Tell ESI to FIX it( it can be done) actually Your Installer may have access to the field that needs to be adjusted ( fine tuned) it is a default value in ALL Esi systems and it usually works very well

Tell your installer to try F16-6 caller ID Gain, depending upon the software of the system, He may be able to get it thru the phone try a value of 11000. tell him to look at the value that is curently there(default is 20000)

Thanks Brian! Esi did try to adjust some settings with the first system.. and although it seemed to get better, they never got it totally right and at one point we got scrambled CID info...
I am not sure if my installer is going to try this again since they have tried many times with ESI and finally ESI said that it is our service provider.

Have you ever heard of Verizon centrex lines having issues with ESI IVX 128 systems? The installer said that I needed to ask Verizon to move caller ID info forward since the information was coming in too late. Verizon had no idea what I was talking about.

Unfortunatly, Most Carrier's these days, just say " Here it is " and leave the equipment manufacture's hang out dry, It is one of those settimgs that has to be messed with, it may take several trys to get it working, If Your installer can get ESI on the phone and into the system, they can " see " what is going on and maybe able to make a recomdation as to what Value needs to be in that field, Good Luck !

I find that the problem with intermittent caller ID usually happens when the first ring to come down the line from the central office is far too short. This can happen in older CO's. Regardless, the CID follows the first ring. In this case, as far as the ESI switch is concerned there never was caller ID. It needs to detect the first ring in order to look for the CID, which it can't because 1/10 second isn't long enough. Some carriers seem to consider a 1/10 sec. burst as a valid ring cadence :shrug: