R4+Z

In command 3002 you tell the system how to handle incoming calls on each trunk during day mode. for PSTN lines you would usually set it to 04 which means direct in termination, then in command 3004 you set what extension number this trunk terminates to (in your case 2775). The pstn number has nothing to do with the numbering on the system other than determining which circuit is being used by the telco eg 3644 may be connected as D001 whereas 3675 could be D003. Once you know the "D" number for each line you can compare the setting. 3003 and 3005 sets the night handling arrangements

arganos

I checked command 3002 and verfied that all 8 of my trunks are set to 04. What I found in command 3004 puzzles me. xxx-3644 terminates into trunk 000 and trunk 000 is set to 3644 not 2775.

The other three numbers in the telco hunt group (3675, 4550, 3927) are set to 2775 in command 3004.

xxx-2775 and xxx-3644 both ring the switchboard 2775. How is xxx-3644 ringing 2775 when the trunk it is on is assigned to 3644 in command 3004?

When I dial xxx-3675, xxx-4550, and xxx-3927 they ring indefinately. They should be ringing 2775 according to command 3004.

What am I missing? Any other ideas?

Thanks for the help!

R4+Z

The first thing to remember is how the telco works with hunt groups. If you ring the primary number it is often the last one that will recieve the call as when that one is busy the caller gets busy tone. What you have to verify is not the number of the trunk appearing on the frame, but which trunk rings when you dial a given number. Another possibility is there is another (or two) lines in your hunt group that you don't have connected on your frame. the way to make sure is loop each trunk on the frame with jumper wire and then try dialling the main number. Then remove the loops and make sure you recieve ring current on each line. After that take a known worker and move it around to confirm the circuits in the PABX work. See how you go with all this and post back if there is still a problem.

arganos

I have verified that each one of the 5 numbers ring by hooking a buttset up to the 66 block, and dialing the numbers individually.

I am a little green, so I'm not sure what you mean by looping each trunk on the frame. By frame, do you mean the 66 block? How do you loop each trunk?

I have considered that the telco may have a number in their hunt group that is not one of my 5, but what I still do not understand is how by dialing xxx-3644 from an outside line, I am getting the switchboard @ 2775.

Here is another issue to note. xxx-xxx-2775 comes in on a PRI that is not owned or operated by our local telco. This number is handled by a different long distance carrier. At the time, our local telco was not setup to do their own PRI's. So they gave us a local xxx-2775 on an analog line so local people could call our company.

I also found that xxx-3644 and xxx-xxx-3644 ring 2 different stations. xxx-xxx-3644 comes over on a PRI, I'm sure, and I have a virtual in the system with 3644 hooked to a programmed hunt that appears on a different phone.

I'm not sure how the PBX is able to differentiate the two. How does the PBX know to associate xxx-xxx-3644 (PRI) to virtual 3644, and xxx-3644 (Analog) to virtual 2775?

I'd really like to know that one. Thanks for the help!

R4+Z

First looping the lines, This means putting a short across them usually done with a piece of jumper wire, this effectively busies the line (it won't do any damage to analogue trunks but don't try it with the ISDN) and once all 5 are looped (individually not to each other) you should recieve busy tone if you dial the main number. If it still rings there is another line or more somewhere and your telco will have to sort the group out.

By frame I mean the Test Point Frame (aka TPF) which is where your system's tails terminate onto the 66 block (we don't use those or that terminology down here we mostly use Krone).

Now the problem you have with 3644 is conceptual rather than real. You have to understand how the calls are being processed to get a grip on it. With your analogue line xxx-3644 the whole number is interpreted in the telco network and calls to that number always come to you down one pair of wires and the call is signalled by ringing current. The pabx detects the ring current and according to pre programmed information rings a given number (3002, 3004 and possibly call forwards E6xx) when that destination answers the system connects the line through and the rest is history.

With your PRI the number xxx-xxx-3644 the telco only processes the start of the number xxx-xxx then it sends information to the PABX that there is a call for station 3644. Now this information may come down the same wires every time but it is in a data type format and can be on any of your 28 channels (this isn't strictly true as there are signalling channels in ISDN but it's easier to describe it this way). The PABX then looks at the number it has recieved and subject to pre programmed instructions (there may be digit conversions carried out in Cmd 76) it routs to the destination rings that phone and when they answer it connects the call to the channel and once again the rest is history.

So as you can see there can be two 3644 numbers available to people calling you but because they come into the pabx in different ways, they are processed differently.

There is also the possibility that there is a hunt group involved in this as well since these terminate on the console.

If you have lines that are recieving ring but not going anywhere in the system you will need to check the programming and if that is right you may have faulty card/s. easiest way to check them is make sure 3002 is set to 04 then change 3004 to a convenient extension near you and ring it.

SpAnKiNeM

There isnt any telco based diversions on these services? When you call into these lines check the COT card inside the pim to verify that the call is actually coming in on the trunk. The LED will go red.

R4+Z

SpAnKiNeM

An interesting possibility, Hadn't thought of that but it would have to be forward busy as we know that ringing has been checked on each trunk when its idle. the test would be ringing each line individually whilst they are looped, however that wouldn't work for the prime of the hunt group, you would have to rely on the Telco for that one.

arganos

Thanks for the explaination R4+Z. That makes perfect sense, and I suspected that is how it worked, but I wasn't quite sure.

I checked this today and found sthg quite strange. I've got 2 PN-4COTB cards. Port 03 on my first COT card is tied to xxx-3675. When I dial that number, the LED does not light up. My second COT card has xxx-3463 on Port 00, xxx-4550 or Port 01, and xxx-3927 on Port 02. None of these light up when the numbers are dialed. Strangely, I get an erratic blipping / clicking on Port 01 where 4550 is tied to. It's sparatic at best.

Could I be looking at 2 bad COT cards? The lines do ring when my buttset is jacked in on the 66 block, but it doesn't appear that the COTs are picking them up.

Can I reseat the COT cards while the PBX is up? I didn't see a MB switch on them.

Is there sthg else I need to check?

R4+Z

The cards can come out and go back in again with the power on without worry. You did say some lines were ringing through to the switchboard so look at what is happening on those circuits to confirm the indications you are getting on a good circuit but it is beginning to look like faulty cards.