POTS disconnect tone - provider "Telenet"

[mmy1981]

Hi,

we'r having issues with an IPO500 6.0(14) using a Combo6210/ATM4 card with 1 analogue line.
This line is from a provider called "Telenet" (Belgium). The problem is the analogue line won't disconnect every time.

Does anybody know what the busy tone detection mode & frequencies are for this line? (system - telephony -> single or dual frequency?)

The option "disconnect clear" is checked on the Line settings (tab analogue options). However I'm not sure of the trunk type (currently set to Loop Start ICLID).

I couldn't get the info from Telenet directly, so I'm hoping someone in here had the same problems. If not, I'll have to test with severval settings...

 

[DanACS]

there needs to be a 150ms difference between the line and the IP Office on the disconnect clear.

ACS - IP Telephony + IP Office
ACA - Too many to remember
ACSS - Would do it but i don't get a free TShirt anymore!

 

[intrigrant]

The analog lines in europe don't facilitate "disconnect clear"
The reason why the line doesn't disconnect is because the IPO "listens" continously on the analog line for busy tone, if recognized and present for at least five seconds then IPO will disconnect the analog line and free it up for use.
The problem is in the word "recognized", the settings for busy tone detection are based on general local settings but if you have a line not complying to the local standards then it will not work.
What you can do is the following, record a busy tone, analize the recording with software like Cool Edit Pro and determine the frequencies used an the pauses between tones and silence.
Put these values in the "Busy Tone" area under system>Telephony>Tones.

 

[mmy1981]

Thanks for the replies...

It seems we'r out of ATM cards over here, so I can't test it right now (can't test it onsite neither)

Intrigant, any chance you work for a firm in Belgium or the Netherlands? We received the same info from our external support contact

I'll try to record and analyse the busy tone. Thought this would be difficult without the proper equipment (I'll have to use an external mic to record the busy tone)

 

[intrigrant]

Use VMPro, it runs unlicensed for one hour.

 

[mmy1981]

How can I record the busy tone with VM Pro? The recording stops when the call is disconnected... (unless the call isn't considered disconnected untill the Busy Tone settings are changed)

 

[intrigrant]

Call from external trouht the analog line to a ipo phone which has a record call button.
Answer the call and disconnect the call from external but do not disconnect the call from the ipo extension. you will hear the busy tone from the alog line provider, mute the mic and press the record call button. Record at least 10 seconds of the busy tone.

 

[mmy1981]

Here's an update for those who face the same problem.
The PBX has upgraded to 6.0(18)

Seems my initial problem description was wrong (didn't get that right from my colleague).

Incoming calls that are answered do get disconnected without
a problem.

However, when a client calls and hangs up the phone before someone can answer it, the line remains open. (at this moment we cannot record the tony anymore with VM Pro)

Incoming calls are directed to an analogue phone (with an announcement! - and this is the problem)

When the call is cancelled before the announcement starts to play, the line gets disconnected like it should.

When the call is cancelled while the announce is playing, the line remains open.

The same problems occur when we are testing with an analogue extension connected to the line port (to simulate a call), so this is not a provider issue like we thought before...

We didn't have a chance yet to test it with a digital phone though...

 

[mattKnight]

>Seems my initial problem description was wrong (didn't get >that right from my colleague).Incoming calls that are >answered do get disconnected withouta problem.

No - your expanded explanation actually confirms your initial posts.

This kind of disconnect issue usually only manifests itself after a connection has been made (i.e. when the phoen has been answered - or the announcement is playing) When joe pleb answers the phone and talks, he realises that the the conversation has ended and hangs up - and the IPO recognises that and disconnects teh line. The embedded voicemail is not that smart and doesn't intrinsically recognise when the "conversation" is finished and so holds onto the line.

In effect IPO needs to be told when the call is finished - either by the loop current drop (not available from your provider) or busy tones. IPO needs to be taught what your provider's busy tones are...

You need to adjust your disconnect tones - like intrigrant shows

Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.

 

[mmy1981]

OK, thanks for the info...But, how can I record these busy tones then?

The call won't get answered by the user, so I cannot record the conversation. And even if I answer the call, the recording stops when the call is cleared.

The provider couldn't give us the correct info for the on and off periods.

 

[mattKnight]

>How can I record the busy tone with VM Pro? The recording stops when the call is disconnected...

Set up VM Pro (it will run for 2 hours without a licence)

Place an external call to an extension, wait for it to go to voicemail and then hang up.

The resulting message file will have teh busy tones available

Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.

 

[mmy1981]

ok, great...thanks for the help!

 

[DanACS]

Seriously, I had this in the UK (exactly the same symptoms)- phoned BT up and increased the disconnect time on the line and it worked fine after that - think i took it up to 750ms The IPO is at default at 500ms and the line needs to be at lease 650ms for this to work. cant remember what the BT default was though.

ACS - IP Telephony + IP Office
ACA - Too many to remember
ACSS - Would do it but i don't get a free TShirt anymore!

 

[DanACS]

* disconnect clear time i meant to say...

ACS - IP Telephony + IP Office
ACA - Too many to remember
ACSS - Would do it but i don't get a free TShirt anymore!

 

[intrigrant]

Call me for fieldsupport and I will solve it for you, costs some € though....

 

[mmy1981]

Here's an update for those who face the same problems.
I was unable to record the busy tone (the wav file stopped recording when the external party cleared the line, altough the line didn't get disconnected in the SSA).

But these settings solved the problem (for the provider Telenet).

line - analogue options -> disconnect clear 150msec
AND
system - telephony - tones & music:
busy tone detection: Single Frequency
Single Freq. (10Hz): 42
On Width (10ms): 50
Off Width (10ms): 50

thanks for all the replies before...