FXO disconnect issue in Nairobi, Kenya

[bilgecetin]

Hi Folks,

I have been doing an installation in Nairobi, nearly finalized but just one item. The very well known problem of the FXO port cannot identify the disconnect message. I read all realted posts applied many solutions. I have captured the voice with Wireshark and analyzed the disconnect signal and applied the below values.

voice class custom-cptone Nairobi

dualtone disconnect

  frequency 425 425

  cadence 50 50

supervisory custom-cptone Nairobi

voice-port 0/2/0

translation-profile incoming incoming_FXO_to_Reception

supervisory disconnect dualtone mid-call

supervisory custom-cptone Nairobi

supervisory dualtone-detect-params 1

no battery-reversal

cptone KE

timeouts call-disconnect 5

timeouts wait-release 5

Any idea is highly appriciated.

Thanks

[Mohamed Abdallah]

Hi,

This is a well known problem with FXO ports

You can use a third party application to solve this issue

Kind Regards

Mohamed

[paolo bevilacqua]

This is a well known problem with FXO ports
You can use a third party application to solve this issue

Incorrect. The only solution is to correctly configure the router.

[Christopher Graham]

Remove 'cptone KE'.  If you have a custom tone configured, you don't need the country's default.  Also, a pcm capture is a better indicator of the actual tone recieved than a packet capture. 

[paolo bevilacqua]

chrgraha wrote:
Remove 'cptone KE'.  If you have a custom tone configured, you don't need the country's default.  Also, a pcm capture is a better indicator of the actual tone recieved than a packet capture.  

That is incorrect also.

If you remove cptone, also all the others tones, impedance, and caller ID standards, will be reset to the default of US, that is not desirable.

You can see from any working configuration that it will have cptone AND custom disconnect, working OK.

Secondly. PCM capture and packet capture are exactly equivalent for the purpose of analyzing frequencies. They contain the same data.

[paolo bevilacqua]

dualtone disconnect
  frequency 425 425
  cadence 50 50

likely:

frequency 425

cadence 500 500