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Incoming call wont disconnect 1

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bigg3rdude24

Vendor
Jul 11, 2008
96
PH
i have an IP500 with 4 analog trunks and some digital and analog locals and embedded messaging. the problem is when there is an incoming call, embedded vm answers then is transferred to an extension and the caller hangs up before the extension can answer, the phones keep on ringing. when you pick up the phone, you just get a busy tone.

i have already enabled disconnect clear and the impedance is correct. also tried changing Locale but did not work either.

if an incoming call will go straight to an extension and not use the embedded messaging, the call disconnects fine.

have anyone had this problem?
 
Yes. Your lines do not support disconnect clear so IPO uses the busy tone detection on the analog line to decide wheter a line is disconnected or not.
Appearantly the IPO does not recognize the busy tone on the analog line so it will never disconnect the line.
Things you can do:
Disable embedded VM and connect a PC with VM Pro to the IPO.
VM Pro can be used for two hours without a license.
Enable autorecording on a ICR of a analog line, call with your mobile to a extension and after the extension disconnect the call from the mobile phone.
The extension hears busy tone which will be recorded by VM Pro.
Use the recording and software to analyze the recording, I used CoolEdit Pro 2000 for that but I dont know if it is still available.
Determine the on/off times of the tone and the used frequencies.
Once that is known you can set these parameters in the IPO > System > Telephony > Tones and Music > Disconnect Tone.
 
you can also call your line provider and ask them if they can activate the disconnect clear for you or if they say they send it it could be that it is not coming through nicely and you need to shorten the 500ms to 300ms or 200 ms for the IPO to recognize it. Had a customer with 17km of line where it needed that.

Joe W.

FHandw., ACS

I don't suffer from insanity
I enjoy every moment of it :)
 
I have an 8730 running v5 software. This same type of issue is occuring on our attendant. The operator claims that there is usually toll free number displayed with the call. The call can not be answered, transferred, or anything. It just has to stop ringing on its own or the console is placed in night se. Any thoughts?
 
intrigrant, i already followed your advice but im not familiar with cool edit pro. i have open the recorded file in cool edit pro but i dont know where i'll fing the frequency being used.
 
nevermind that. i found it. the telco is using 350Hz.

thanks all for the help
 
last question, where in cool edit pro will you find the on/off width? thanks
 
You can see that in the wave. There is either audio or not, see picture

Wave.gif
 
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