DISA Calls do NOT disconnect 2

[bmadtiger]

Hi folks,

I'm in Manila, Philippines with 4 (analog) trunk lines from PLDT. As far as I know we have no Calling Party Control (CPC) signalling to notify our PBX that the caller has hung up. Our PBX is a Panasonic KX-TDE100.

The lack of CPC has only caused a problem now I am testing the DISA/Auto Attendant feature. Without DISA, if the caller hangs, up, the internal extension stops ringing (within a few seconds). BUT if I enable DISA on a CO line and then call that line - the OGM plays and I can select an option, then hang up, but the internal extension keeps ringing (and following the ICD rules of redirecting to other extensions etc). Of course, when you answer the call, there is nothing on the other end (or maybe a busy tone).

If our provide cannot send the CPC signal - how else do we detect that the caller has hung up when using DISA?

Why is this different when using DISA? It works fine when not using DISA...

Thanks
bmadtiger

 

[obtsystems]

Because when using disa the call is answered and without cpc the system does not know the call is gone.

Without disa the line is sending ring bursts of about 90v ac. When this stops the system knows the line has stopped ringing

There is nothing you can do unless your telephone service can provide cpc or reverse voltage

You can get cpc generator which will detect silence and send cpc to the system

 

[ukphoneguy]

I have the exact same issue with my KTX 308 Hybrid Systems.

And i am yet to find a solution

 

[cwc3]

There is an adjunct you can add to your lines that will generate
cpc signal when silence is detected!

http://www.thetelephonemanonline.com

 

[jvparagna]

Hi all,

I also have a problem on the PBX TDE100 every time I use the CO and after my call I tried to call the trunk line still still busy. Can anyone help me on this.

thanks

 

[obtsystems]

that is different, the system has a outgoing analogue co guard timer of 3 seconds to stop you picking up the line again too quick and not giving the line time to reset, and you would end up having to hang up again

 

[jvparagna]

thanks but is there any chance to stop it like the ordinary phone once you done calling it can ring the CO? when I call the trunkline and the auto attendant answer, then I drop the call it directly ring the operator. How can I stop it before it directs to the operator's phone?

 

[obtsystems]

Sorry I took your question up wrong.

You can't without cpc signal or isdn lines, unless you don't allow no dial transfer. So if I call in and AA answers and I don't dial a option it will disconnect the call. Problem is the few phones out there without touch tone Dialing will not get to the operator

 

[jvparagna]

sorry I rephrase the question

Example I called the trunkline and the auto attendant answered then I make up my mind to hang up the phone, so the call still connected right? and it will re-directly to operator after, then once the operator pickup the call it will hear busy tone. question: how can I stop it before reaches the operator.

 

[obtsystems]

Re read my last post. It answers that question saying You could change what happens when someone does not dial anything when AA is answered

 

[jvparagna]

OK thanks

 

[mak12321]

to bmadtiger

You can disconect any unanswered calls to DISA if you limited them by time, but it is not a perfect solution.

 

[jvparagna]

Hi,

What is the solution for it

 

[bmadtiger]

Hi Mark12321,

Which setting are you talking about? I already have it set to disconnect if there is no DISA input after 60 seconds. But for some reason some calls come in and don't connect properly, tieing up the line indefinitely. I suspect obtsystems is correct in that I need CPC, but I doubt the local phone company would offer it. I will have to try.

Thanks
bmadtiger

 

[mak12321]

Prog example how to disconnect unanswered AA call.
Program a dialing DISA options to go to a group not to extension. program queuing time table for this group like: sequence 1 - wait 60 sec, sequence 2 - wait 60 sec, sequence3 - DISCONNECT.
in 2 min the call will be disconnected and line released.

 

[bmadtiger]

Hi mak12321,

Thanks for that info. That is exactly what I've got set up, and when I test it by calling, waiting for the DISA message to answer, and then hang up without pressing any option, the system behaves as expected and hangs up after I don't dial anything.

For some reason, we are getting some calls where it doesn't do this and I cannot figure out why it won't hang up.

Any ideas on how to trace the problem?

Thanks
bmadtiger

 

[Kierso]

You are looking in the wrong directing. There is a few changes to be done.

1. Ask your provider or find out what your providers CDC (Call Disconnect Connection) is.

2. Set the CPC (Port Property)of the System to a quarter of the Providers.
ex. Provider 400ms, System 104ms

3.Go to the Panasonic Secret Menu. Change E18 record tone 1 + Cyclic to Single Use Count from 2 to 0

 

[jvparagna]

Hi Kierso,

Where can find the cdc and the secret menu?

 

[Kierso]

Hi Jvparagna,

First you need to go onto the slot table. Take the Analogue trunk card and put the card out of service. Then right click and select port propertys. Then you will see the CPC Signal detection Time. You change the time there.
Set the CPC (Port Property)of the System to a quarter of the Providers.
ex. Provider 400ms, System 104ms
Test.

The secert menu is only for the Voicemail or Auto attendent messages.

 

[jvparagna]

Hi Kierso,

The secret menu that i want also. where can I find it?