atcomsystems.ca/forum Forums TDM Business Telephone Systems Comdial Telephones & Systems DX-80 No Caller ID Displayed

OK, let me preface this by saying that I'm a DATA Sys Admin/Network Engineer. I am quite ignorant when it comes to voice systems. So, please bear with me if my terminology or syntax is a bit askew.

We have a Comdial DX-80 system with 5 lines coming in. Last week we changed over our voice and data product from our provider, from 4 Centrex lines and 1 analog with ADSL, to a T-1 product that combines voice and data in a type of VoIP offering. This product breaks out 5 voice lines (From a DATA T-1) that are supposed to be signaled just like an analog line, but I can not verify this, as I'm VOICE/TELCO ignorant.

Everything has been working quite well with no changes to the Comdial System, except for one thing... Our handsets are no longer displaying inbound CallerID. They display "Incoming --> 1 UCD" instead of the Company Name and Number.

I would really appreciate if anyone has any ideas about how I can resolve this. I would be glad to post more information, if you can walk me through obtaining it properly.

Oh one thing. I have tested the 5 lines from where they are broken out and terminated BEFORE they enter the Comdial DX-80 with an old analog phone with CallerID display, and they DO display the call information on that phone...

Thank you,

Andrew

If NOTHING has changed on the DX80, then I would say the CID is no longer being received in the first 3.5 seconds, which is the default for the DX80. If you were to monitor the line, to see when the CID splash was being sent by the provider, I'm guessing you would now find it coming in after the first 3.5 seconds. Typically, CID would be received between the first and second ring. Watch your CID-capable analog phone (connected directly to the line) and see if you can tell when the CID info shows up.

Justin

Well, I wish I would have specified this, but anyway, the CID is showing on the cheap analog phone with CID Display between the 1st and 2nd ring. We did check that several times earlier today.

And literally NOTHING has been changed on the DX-80 up to this point...

Thanks,
AK

Be sure the CID Rng Time (under Call Handling) has not accidentally been set to zero. When a call comes in, you should see the line key "light up" red steady at first (then begins the CID timer) and then the phone should finally begin ringing after the CID timer has elapsed. This way, the CID can display on the phone the instant the ringer is sounded. If the DX-80 phone rings instantaneously with the initial light of the line button, the CID timer needs to be increased from zero until you get CID info as soon as the phone rings. Default as Justin said is 3.5.

Have you unknowingly gone into a different ring mode?? Day to Eve or to Alt?? Those modes may not be set up to have anything except the extension 101 ring.

Good catch JW, but wouldn't CID be passed on regardless of ringing in a UCD or just a plain old extension? I suppose we'll be able to proceed once we hear back from Agape.

The DX80 only displays CID on ringing phones, no ring, no CID.
Mark

Good point Mark. Is the phone in question actually, physically RINGING?

Last week we changed over our voice and data product from our provider, from 4 Centrex lines and 1 analog with ADSL, to a T-1 product that combines voice and data in a type of VoIP offering.

I have had terrible luck with CID over these kind of circuits. The DX-80 requires the CID data stream to be in a specific format or it dumps all of the information. I've had 2 DX-80s and 5 Vodavi systems that were working and no longer do on these circuits.

Since it was working before then I would hound the dial tone provider until they fix it. If my experience is any indicator, and I'm in the business, the provider will hook up their little caller ID box which normally will display the data and say it's your problem. The phone system will not tolerate null characters in the data stream or any format errors. Make sure the vendor is providing CID in standard Multiple Data Message Format (MDMF). I'm going to guess that the Comdial is detecting a checksum error and dumping the data.

Also when I've had problems with CID on these circuits I've also had difficulty with faxing.

Be happy you don't have a T1 or PRI circuit with one of these providers. Then you get to experience the joy of no service half the time.