IPLDK20 ringing itself for company

[magnethead]

Hi There,
I got some stellar help on this forum before to dumb down an IPLDK 20 as a PABX for a single analogue line with four extensions (Small office)

Link

I turned on a auto-receive Fax option which is a life saver, the receptionist used to have to pick up and transfer to another person who would then hang up to transfer it to the Fax machine...now it goes straight there.
Here's the help I got at setting up the Fax transfer
Link

THE PROBLEM NOW is that when you call the Phone line and Hang up, the system keeps ringing?? So when the receptionist comes in, in the morning and afternoon, more times then not the phone is ringing, she picks up, nobody is there, just a phantom caller..

I should deactivate the Fax forwarding and test the system to see if it's related to that, but I might be barking up the wrong tree, Maybe there is a Telco Jedi out there who can use the force to decipher what's going on.

Here's some advice I got before on the timers that actually got the system working in the first place.

----------------------------------------------

PGM180 - System timer
SLT Hook Switch Bounce Timer: 1 [No change here]
SLT Maximum Hook Flash Timer: 20 [Current Value: 5]
SLT Minimum Hook Flash Timer: 7 [Current Value 20]
SLT Ring Phase: 3 [Current Value: 5]


ICM dialtone is a steady single tone. You hear it as soon as you pick up a station
Another thing to consider for holding calls, is using parking bins.
You can park calls on 601 by pressing Recall, and dialing 601.
Pick up the call from any station by dialing 601.

Check your SLTs for a switch or control where you can adjust the Recall timer. See if there is a setting for Recall 100ms or Recall 600ms.

Try the above settings before worrying about your SLT switch. Let me know how that goes

----------------------



Thanks
Nathan

 

[martinhodge]

under program 142 flex key 13 or 14 i think for that line number check the open loop timer is set to 500 ms otherwise the line will not clear down correctly when some one at the other end hangs up typically bt set their lines to 800 ms . so as long as yours is set to less than what your line carriers are then it shoudl clear down correctly

 

[magnethead]

Thank you, I'll check that out tonight and come back to you

 

[magnethead]

Hi,
I made the changes you said, but unfortunately, it didn't change anything...I changed to the number 5 and 8 in the menu below..(think they must be to the power of a hundred)

....I'm going to deactivate the Fax Forwarding to see if that is responsible.

 

[magnethead]

Hi Again.
I checked it out, When I disable the Fax 'auto transfer' the IPLDK acts normally, ring in, and hang up before the call is answered and the machine will drop it.

BUT once you activate 'Fax auto transfer' where it goes into listening mode, you call in and hang up and all the phone continue to ring forever

Damn, the Fax auto transfer is so handy it's worth taking the pain about 25 faxes a day, there is just the one analogue line coming in to this IPLDK and four SLT coming off it with the Fax line connected to the last port.

Anyone know why the machine won't let the call drop once someone has called in and dropped their connection before it was answered in the office?

Thanks

 

[eats4treats]

Hi

In your screen shot I looks like you are programming 500. You only have to input 5. Also make sure the line side from the network is definitely set to 800 milliseconds. Your asking for the 'Open Loop Supervision' Timer to be set to 800 milliseconds. If the line side is not at 800 then you will always have ghost ringing when you hang up. Is it a single DEL? I have recently just been made aware that if the DEL is on BT System Y wiring then it cant be changed. System X wiring is fine. I don't know if that's UK wide or just the area I was in.

Eats

Ok, Press Trans *#..... TRANS/PGM..... the transfer key?.......sigh!

 

[magnethead]

Thanks for the reply Eats, I am a total Telco Nube...you are right, the only think I could select in that drop down box was '5'...I just wrote 500 in there but it wouldn't take it.

make sure the line side from the network is definitely set to 800 milliseconds

I guess I have to ring the Telco for that information?

Is it a single DEL?

It's a single Analogue line coming into the building and the IPLDK20 performing as a PABX ... Don't know what a DEL is.... I'm in Ireland so I wouldn't be surprised if we have similar wiring, a lot of our standards come from the UK, because you guys set things up here ;p like our 3 pins electric plugs LOL

 

[eats4treats]

Hi

A DEL is a 'Direct Exchange Line' ie. a normal single analogue line. Yes, you need to ring the Telco. If I'm honest, probably 50% of the time the initial person who answers has not a clue about the timer or what it is. You may have to escalate the request to the line manager etc.

Then it should work fine! In another scenario it happens when a call comes in to the LG system on analogue lines, the vmib answers for either an auto attendant or voicemail box and the person calling in hangs up mid message. The system, due to the timers not handshaking properly, carry's on ringing and will lock the line up till you either soft reset the system or wait for the 5 minute BT timer when no voice or data is detected on the line.

Eats.

Ok, Press Trans *#..... TRANS/PGM..... the transfer key?.......sigh!

 

[magnethead]

Wow, after 20 minutes on the phone with the Telco 'Eircom'...they couldn't tell me what the 'open loop detect timer' was (They said they rang a few different depts., including business support)
looks like I'll just have to try all the option until I get it right

I will let you know the outcome

 

[Thermus]

Magnethead

Try "clear on disconnect" or "clear forward". It's been a while since I was in the UK so can't remember what the terms are anymore.

Open loop detect is a PABX term, so would probably be unlikely a telco would know what it meant.

You could test for the signal if you have a test butt that can test line polarity. Make a call on the line, push the polarity button when the call is answered, get the far end to hangup, the LED showing polarity should turn off ( for about 0.8 of a second ) and then come on again. If the LED stays solid the whole time, you have no open loop happening.

 

[magnethead]

ok, I'll talk to them again today, I tried putting different settings in the 'open loop detect' dropdown (1,5,12) but nothing worked... This problem happens right after auto transfer is activated, and I know it has some timers of it's own that are longer.. I think after 5 seconds of listening (you can hear the IPLDK box ringing) before the actual office phones ring...so whatever call is coming in gets kicked out to the lines once the listening is finished (See manual entry below)

2.4.28 Automatic Fax Transfer
(ipLDK-20)
Description
The system will determine if an incoming call from the preprogrammed CO line is for a FAX or for speech terminal by detecting the tone of the call (1100Hz, 0.5s ON/3s OFF repeated). When the system detects a FAX tone from the incoming line within the predetermined time, the System will transfer the call to the appropriate FAX Station. If the FAX tone is not detected within a predetermined time, the System will transfer the call to the appropriate Station(s).

In that "Line attribute" menu for update "picture above"... what are the PABX options? is that like having a separate PABX attached to the IPLDK? I'd love to change the ringback tone that the fax auto transfer leaves in place

 

[magnethead]

I asked your question here Thermus
Link

and got referred to this thread, where they eventually confirm that on Irish Phones CPC/voltage flash is not used to signify end of call and a busy tone is used. (Whatever that means)
but hopefully it makes sense to you?
Link

It said in the above thread

It seems as if the Irish and UK busy tones are different (.375ms vs .500ms duration)

I didn't try the number 4 on the 'open loop detect' last night....I'll give this a go(Close to .375ms).

Thanks again
Nathan

 

[magnethead]

Eats, I'm just re-reading what you wrote earlier

Then it should work fine! In another scenario it happens when a call comes in to the LG system on analogue lines, the vmib answers for either an auto attendant or voicemail box and the person calling in hangs up mid message. The system, due to the timers not handshaking properly, carry's on ringing and will lock the line up till you either soft reset the system or wait for the 5 minute BT timer when no voice or data is detected on the line.

This system does not have a VMIB, it's just the Fax forwarding that created this problem, and the interesting part of your comment, it that a BT Timer would disconnect the line after 5 minutes
This Bloody machine rings all night until the next morning if no one is there to reset the phone on the hook
Crapy local Telco obviously doesn't have a Timer built in on their circuit or the IPLDK box is taking over here and going into it's own loop.

 

[eats4treats]

Hi

Below is the extract from the manual:

2.4.28 Automatic Fax Transfer
(ipLDK-20)
Description
The system will determine if an incoming call from the preprogrammed CO line is for a FAX or for speech terminal by detecting the tone of the call (1100Hz, 0.5s ON/3s OFF repeated). When the system detects a FAX tone from the incoming line within the predetermined time, the System will transfer the call to the appropriate FAX Station. If the FAX tone is not detected within predetermined time, the System will transfer the call to the appropriate Station(s).

Condition ƒ
Only one CO line can be programmed as a FAX CO line. If the FAX CO line is not programmed, Automatic Fax Transfer will not be activated. ƒ

Station 17 is used as the FAX Station. The FAX machine should be connected to the port for Station 17 to use this feature. ƒ

If the FAX CO line is not answered within the FAX CO call time, the incoming call will be disconnected. ƒ Outside caller connected to the FAX CO line will hear a ring back tone while the system is detecting a FAX tone. ƒ

In order to transfer calls from the FAX to a FAX station, do not assign CO ring to the FAX Station 17. ƒ

If a CO line is programmed for DISA and for Automatic FAX Transfer as well, incoming calls from that CO line are served as DISA calls. So, if a user wants to call the FAX station, just call station 17 by exploiting DISA call. ƒ

When the FAX machine goes idle after a FAX call, the associated CO line is released. ƒ

If the FAX CO line is disconnected during a FAX call, the CO line is released and the FAX machine will return to an idle state. ƒ

Only Analog lines are enabled for using this feature.

Admin Programming „
Auto FAX Transfer CO (PGM 161, FLEX17 ) „
FAX tone Detect Timer (PGM 182, FLEX13) „
FAX CO Call Timer (PGM 182,FLEX14)

Ok, Press Trans *#..... TRANS/PGM..... the transfer key?.......sigh!

 

[magnethead]

Hi Eats,
I have that extract and the auto fax transfer is working....I got help here in setting it up
Link

There is no issue with that, but when I switch it off the line works as normal, and an incoming call that is hung up on, will disconnect and not keep ringing

but once I set the Fax transfer, the incoming calls never stop ringing even when someone has hung up their call which was coming in.#

I changed the 'open loop detect' to 3 and 4 and still no luck

As a matter of interest, when you make an update with this software, do you need to make a hard reset of the IPLDK to test, or should the changes be applied live?

 

[magnethead]

One point on the programming... these are my options

Admin Programming „
Auto FAX Transfer CO (PGM 161, FLEX17 ) „
FAX tone Detect Timer (PGM 182, FLEX13) „
FAX CO Call Timer (PGM 182,FLEX14)

The last system timer I can not update...and to update the "Fax tone detect timer" I need to put a value in the "fax CO call timer" space in the application...but when I use the cell below "CO call timer" in the hope it will transfer the value up, it doesn't..

Can you get this mismatch in application and firmware? where you get the IPLDK updating incorrectly?

Thanks
Nathan

 

[JJ999]

Just a hunch,(educated old lg engineer) but have you flagged on DSEC ( Data Line Security ) for this fax extension.
Do update us !

 

[Thermus]

Hi Magnehead

If you are having problems programming certain fields, it is quite likely the PCadmin and MPB software levels are different.

So try programming from the phone, it is more reliable than the PC.

Also what level of software are you running?

 

[magnethead]

Hi JJ999,
The Dataline security was in the default state (OFF), see below...I noticed thought that my Firmware is quite out of date, and I never bothered updating it originally because I just wanted to use this IPLDK as a simple PABX..
I will update to the latest (at least I should be able to update the Fax CO call timer)
Thermus, I don't have a phone to program this IPLDK, they are all SLT's.

Question: If I update to the latest Firmware, can I download the backup I have at the moment? or do I need to set all the changes from scratch and make a new backup?

 

[eats4treats]

Hi

Upgrade to 3.9 and the programming will be fine. Always worth taking a download first though, just in case!.

When upgraded you will need to 'Initialise by Software' PGM452. I did it once from PC Admin and it screwed my system up and was told to always use keyset programming to 'Initialise by Software'.

Take an LDK30 or LDP7024 with you to site so you can use PGM452 after the upgrade. This step doesn't delete any programming, it just brings the programming up to date with the software.

Eats

Ok, Press Trans *#..... TRANS/PGM..... the transfer key?.......sigh!