Can not access the CO line from any extension - PBX Info :: Your Free PBX, PABX and Telephone Information Resource

baltazar13 · 12-16-2007, 04:38 PM

Hi,
I would really appreciate some help as I have now spent over a week trying to find a solution.

I have just bought a KX-TD816E and a 4CO Expansion module KX-TD180E for home, I know this is a very advanced switch for home use but I got very good deal on Ebay.

I have initially connected 2 extensions using the 6 Way DDK's and connected only 1 pair of wires to the 4 Way DDK going into the left most connector on the KXTD-180E (the one that reads 'CO Line').

The KX-TD180E expansion module is connected to the left-most connector on the KX-TD816E which I believe is area 1.

I am able to dial one extension and also able to receive inbound calls from the CO line, however no matter what I try I can not get the extension to access to CO line. Pressing 9 then the outbound number gives me silence and nothing is dialled.

I have reset the PBX to it's default values thinking the previous owner had customised it. I have also tried to connect the expansion module to area 2 but pressing 9 on the phone gives me a busy tone.

Any pointers would be greatly appreciated.

I have read the manual in details and it says that function 109 needs to be set in order for the PBX to recognise the expansion module. As I have no system phone for programming I am using the KX-TD 816/1232 Programmer software and it recognises the expansion module forgive my ignorance please but I think function 109 is for the KX-TD816 not the 816E since the former has already CO lines built-in mine hasn't.

Many thanks

***sncsnc*** · 12-16-2007, 05:15 PM

we have 2 resident e model gurus one is rivet one is badger
i'dd pm them directly and who knows maybe badger will ring you and can walk you through your issues our version of the 816/1232/500 are different than the "E" versions you have in the uk i'dd never heard of DDK connector untill I started as mod here and I had to ask one of our uk members myself!!

Badger · 12-16-2007, 05:50 PM

Well firstly I'd say your wiring is good if u can receive incoming external calls. Try accessing the line with a co key on one of the system phones. This will prove whether u have access to the line itself.

To get into programming do the following from a display system phone on the first 6 way ddk

Keep handset down
program
*# followed by system password which u should know
then press speaker key

You are now in phone programming. Hold takes you back to the beggining and speaker is the ' next ' key. Auto dial stores saves your programming.

Try the following. Go into programing as above. Dial 400. This step assigns which lines are connected. Press speaker. Press speaker to scroll through each line. Toggle all unconnected lines to disable / disconnect using auto answer key. Press auto dial store to save and program key to exit.

I think the problem is the system is set to dial out on the highest line first which isn't connected.

Regards

Badger

Sent from my iPhone

Badger · 12-16-2007, 05:53 PM

Forget to say PM me if u want a copy of the programming manual

Badger

Sent from my iPhone.

***sncsnc*** · 12-17-2007, 05:17 AM

badger does your e model td's not come out of the box with all lines assigned and ringing by default?

Badger · 12-17-2007, 02:10 PM

Indeed it does.

The UK TDE has all extns ringing on incoming calls and access to all trunks out of the box.

The only problem is the system is configured to pick up highest line first on outgoing calls and I suspect the problem above is the system is trying to pick up an unconnected trunk line.

It's a common problem in the UK with ISDN trunks and SLT handsets. When configuring ISDN 30, the phones will try to access channel 30 first - not good if you have less than 30 channels provisioned by the network. (You have to put provsioned and unprovisioned channels into seperate CO groups and remove the unprovisioned CO group from dial 9 access in 109).

Been a while since I worked on TD but I used to work on them daily until about 18 months ago. Don't really support them at all anymore now that TDA and TDE have been launched.

***sncsnc*** · 12-17-2007, 02:53 PM

Ah well i makes me feel warm and fuzzy that we don't have to deal with
BRI and I'm sure BT is helpfull when you run into problem like you just described . I still have at least 15 12311D's out there and at least a 100 different flavors of the TD out there so it makes life interesting to bounce around and loads of tda's .Have a great Holliers I am off to Dublin !!!

biggles · 12-17-2007, 11:32 PM

Couple of questions
How many co's are you trying to connect?
How many extensions are you trying to conect?
Do you have a Keyphone to check trunk assignments?

The basic KSU will accomodate 4 co's and 8 hybrid extensions, adding the 180 will up the co count to 8 co's.
From memory the 4 way DDK plugs will accomodate 2 lines each and the 6 way DDK plugs (which there should be

should be for each extension in 3 pair modularity (I think)

Cheers

baltazar13 · 12-18-2007, 12:46 AM

Biggles.

I am using analogue and have only one CO line, so I only connected 1 pair of wires to the 4WAY DDK.

I do not have the system phone, but I am using the KXTD Programmator by PBX Software.

The TD816E does not come with any CO lines hence the purchase of the 816E expansion unit.

I have tried removing all 7 CO lines assigned by default and leave only but this gives me a busy dial tone when I press 9.

To answer all the questions asked in this thread, I am using 2 extensions, the wiring seems to be ok as I can dial one extension from another (as a note: I have only connected 2 pairs of wire into the 6way DDK - PIN 2 TO 4).

Many thanks

***sncsnc*** · 12-18-2007, 02:20 AM

the last pair was for the six wire sets which don't really exist anymore!
there were kx-t 7130's over here!

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