FXO disconnect problem with PBX Ericsson BP 250

Answered Question
Jun 25th, 2008
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Hello,

I have connected a PBX ericsson BP 250 to an FXO in my voice enabled router 2811.

The problem is:

When an analog phone attached to the PBX calls an IP phone registred with the CME, the IP phone ring normally. But when the analog phone goes on-hook, the IP phone continues to ring.

Please can you help me.

Thank you very much.

Correct Answer by paolo bevilacqua about 8 years 11 months ago

Hi, these should be CPTs for Tunisia:


http://www.3amsystems.com/wireline/tone-search.htm?start=0&kCountry=177&kTone=&frequency=&cadence=


Check if your PBX is actually using one of these.



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paolo bevilacqua Wed, 06/25/2008 - 01:34
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Hi, are are you using the keyword "opx" in connection plar" ? You need that.


Then if that is not enough you need to configure disconnect supervision, likely based on tones:

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml


Hope this helps, please rate post if it does!


nizar.houichi Wed, 06/25/2008 - 01:41
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Thank you very much mr Bevilacqua

I need to khnow this two parameters:


-frequency

-cadence


of the PBX BP-250


Thank you very much


Houichi Nizar

paolo bevilacqua Wed, 06/25/2008 - 01:57
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Have tried OPX first ?


For the parameters, set cptone as per you country under voice port. That may be enough.

nizar.houichi Wed, 06/25/2008 - 02:04
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Hello,

I don't need a connection plar. So i don't tried opx.

Thank you

paolo bevilacqua Wed, 06/25/2008 - 02:05
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So how do you route the call to a specific phone, are you using IVR or what ?

nizar.houichi Wed, 06/25/2008 - 02:14
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Hello,

I'm using extension. I call the number of port thet connect the PBX to the FXO. Then i dial the number of IP phone.


Tahnk you

paolo bevilacqua Wed, 06/25/2008 - 03:21
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Then yes you need supervisory disconnect. If the default doesn't work, tell us which country are you in, record the tones with a PC and attach the file here.



nizar.houichi Thu, 06/26/2008 - 00:42
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hello,

thank you first for your assistance.

I'm from tunisia and i use a pbx Ericsson BP 250

in a central office. I would like to khnow the parametres of this command:


voice class custom-cptone Discon

dualtone disconnect

frequency 425

cadence 500 500


Thank you very much.

paolo bevilacqua Thu, 06/26/2008 - 03:57
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Very good, thanks for the appreciation and good luck!

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