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New Member

FXO Disconnect Issue

I use C3945, in that router running IVR on Router with tcl script for incoming call. I've a problem with disconnect on FXO. Sometimes FXOs remain off-hook even if the incoming call is ended. When I input "show call active voice brief", I saw the duration of the call 1d2h.

Here is the syntax on FXO port

voice class custom-cptone Disconnect

dualtone disconnect

  frequency 450

  cadence 363 343

voice-port 0/0/0

supervisory disconnect dualtone mid-call

supervisory custom-cptone Disconnect

cptone ID

timeouts call-disconnect 1

timeouts ringing 10

timeouts wait-release 1

timing hookflash-out 50

description 8883106

voice-port 0/0/3

supervisory disconnect dualtone mid-call

supervisory custom-cptone Disconnect

cptone ID

timeouts call-disconnect 1

timeouts ringing 10

timeouts wait-release 1

timing hookflash-out 50

description 8883107

When the FXOs shut and no shut, FXOs running well for a while, but the ports will remain off-hook again.

Did i missed something ?

BR,

Manalu

10 REPLIES
Hall of Fame Super Gold

FXO Disconnect Issue

Probably the tone configuration is wrong.

New Member

Re: FXO Disconnect Issue

I've captured the packet RTP disconnect tone with wireshark and convert it to file audio (extension au).

I attach the file. Please advice what is the value of the tone ?

VIP Super Bronze

FXO Disconnect Issue

Most likely your frequency and cadence are set incorrectly. You need to find the right frequency and cadence..

The link below explains how to do this.

http://ciscoflair.blogspot.co.uk/2009/05/cisco-fxo-disconnect-issue.html

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"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: FXO Disconnect Issue

Yes, i also think there is error value frequency and cadence but I've done like the link that you suggest and the problem still appears

VIP Super Bronze

FXO Disconnect Issue

Post your config.

Please rate all useful posts

"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: FXO Disconnect Issue

Hi aokanlawon, please see the attachement

VIP Super Bronze

FXO Disconnect Issue

I dont see your frequency and cadence configuration. Ensure you use the link I sent to you to set the proper values. Thats the only way I know you can resolve it

Please rate all useful posts

"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: FXO Disconnect Issue

Hi aokanlawon,

Please see on this part :

voice class custom-cptone Disconnect

dualtone disconnect

  frequency 450

  cadence 363 343

VIP Super Bronze

FXO Disconnect Issue

Why do you have disconnect at the end of the voice class? I dont think it should be there. I also suggest you use multiple frequencies...The key is to get your frequency and cadence as accurate as possible..

voice class custom-cptone Disconnect

dualtone disconnect

  frequency 450

  cadence 363 343

Please rate all useful posts

"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: FXO Disconnect Issue

voice class custom-cptone Disconnect,

Disconnect word just word for custom-cptone's name

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