atcomsystems.ca/forum Forums TDM Business Telephone Systems Panasonic Telephones & Systems Panasonic DBS 72 DID/DNIS issue?

Hi guys. I work for a clec and we have a customer that has a few sites with us that is having a problem with DID/DNIS. We are trying to turn a new site up with them but they state they are not seeing digits come in to the system.

The vendor asked if we are sending DID or DNIS. The question confuses me and our 5E tech is not available for me to quiz so...can anyone explain the difference for me?

We are connecting the T1 into the pbx and it's configured for B8ZS/ESF and E&M Immediate.

The vendor states that he is not seeing digits. We are sending 4 digits per his request. We can even see the digits when monitoring the 5ESS.

We even went out to the customer prem on Friday night and used a tberd to watch for digits and we saw them just fine. They came in as dtmf.

I don't know the panasonic dbs system. Perhaps one of you might have some suggestions that I can send over to the vendor?

Thanks guys!

Fred

The DID/DNIS question applies to the DBS programming and doesn't concern you since you are sending him 4 digits. In the DBS, the DID and DNIS program routing programs are separate. He will need to decide if he wants to use the DNIS or DID routing. There's a lot of hardware preparation for the DBS 72 that, if not installed correctly or completely, will cause the T1 not to work. Does he have a MFR card for dtmf signaling? Wink start should be used instead of immediate start. The DBS should be power recycled for just about every T1 program change.

If I understand him, the DID is for a full phone number and DNIS is for 4, 7, or 10 digit? He said he took this system from another store location that was already up with us and moved it over.

Sadly, he insists that we are not sending him something correctly and keeps telling us he wants us to come back with a tberd but once was enoughf or us to know that we are sending digits and they are getting there. Right?

I don't know if he has a MFR card for DTMF signaling. He mentioned an SMDR? Not sure what that is.

I know he is using immediate start. Why would you recommend Wink? Just curious? Would you want it in and out?

I don't think he is rebooting the dbs between changes.

Thanks for the reply!

If you're sending him the last 4 digits of a DID or of the DNIS, then that's all you can do. I would recommend wink because that's how I do all of my DID/DNIS on T1s. But as long as you both are set for the same signaling I guess it doesn't matter. SMDR is for call accounting and has nothing to do with whether the T1 works. When you say that he took the same system that was working with you, do you mean that it was already working with a T1 provided by you? If that's the case, verify that the settings on the new T1 are the same on your equipment as the old T1.

Remember, per the first post:

We even went out to the customer prem on Friday night and used a tberd to watch for digits and we saw them just fine. They came in as dtmf.

This was at the smartjack and also through the CPE.

He told me he was watching the SMDR for digits and didn't see them. Is there some way we can debug the system to show more information to us?

It won't show on the SMDR because the DBS didn't successfully recieve the call. If he can answer the call then you wouldn't have this problem and it will show up in the SMDR. Change to dial pulse and see if that helps. So, did this DBS use to work on a T1 provided by you?

It won't show on the SMDR because the DBS didn't successfully recieve the call. If he can answer the call then you wouldn't have this problem and it will show up in the SMDR. Change to dial pulse and see if that helps. So, did this DBS use to work on a T1 provided by you?

From what I am being told, yes. He moved it from one site to another. I'm not quite sure if I can believe him or not.

One thing I may have failed to mention is that he "IS" able to get the calls inbound but they ring on what he keeps calling "trunk 17" and said that it does that because the DBS is not seeing DNIS so it rings to a default extension. Sounds like that makes sense to me.

I can suggest dial pulse to him. I'll let you know what we find out.

In the DBS the trunks come in backwards when configured with a T-1, exmp. a single 72 cabinet has trunks 1-24, when a T-1 card is installer trunk 24 comes the first T-1 channel, the 23 becomes the second, etc. It will do Dial pulse with out the DTMF/MFR card but DTMF is recommended. I have installed lots of dbs t-1 combos and agree, he is doing something wrong. also If the DBS has no DID data it simply returns a busy signal.

The customer called me this morning and told me that the vendor found a bad board in the system that had to do with dtmf. Perhaps the MFR card mentioned earlier in the thread?

Regardless, the problem is resolved and the customer is satisfied knowing it's not us.

Thanks to all who replied!! You guys are really a big help!