FXO Disconnect Problem again...

[andrewdipta]

Hi All,

I have a common problem with FXO disconnect. The FXO integrated to Pabx. Using router 2801/2811 with IOS version c2800nm-advipservicesk9-mz.150-1.M3.bin. I already tried all of possible configuration in this forum but still not work. FYI, I'm in Indonesia. I already tried to set cadence and frequency with Indonesian standart

Right now my FXO configuration is like this:

voice-port 0/1/2
trunk-group to-PABX
supervisory disconnect dualtone mid-call
supervisory custom-cptone Disconnect
groundstart auto-tip
cptone ID
timeouts call-disconnect 5
timeouts wait-release 5
timing hookflash-out 50
timing sup-disconnect 50
impedance complex2

voice class custom-cptone Disconnect
dualtone disconnect
  frequency 425
  cadence 250 250

Really need an advice about this. Just read fxo disconnect problem document from Cisco but still wont work.

[paolo bevilacqua]

Try:

no groundstart auto-tip

timeouts call-disconnect 1
timeouts wait-release 1

no timing sup-disconnect 50

Otherwsie record the disconnect tone again and post it here.

[andrewdipta]

Hi Paolo,

Thanks for your reply, I'll try your recommendation. If the problem still exist how to record the disconnect tone?

voice-port 0/1/1
trunk-group to-PABX
supervisory disconnect dualtone mid-call
supervisory custom-cptone Disconnect
cptone ID
timeouts call-disconnect 1
timeouts wait-release 1
timing hookflash-out 50
impedance complex2

Many thanks

regards,

Andrew

[paolo bevilacqua · Accepted solution]

Described in other posts on the same subject.

[andrewdipta]

Hi Paulo,

Thankss for your guidance, finally I recorded the disconnect tone and fix my cadence parameter to this:

voice class custom-cptone Disconnect

dualtone disconnect

  frequency 425

  cadence 350 350

And I found a great link to record the disconnect tone

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

[paolo bevilacqua]

You don't even need span to port. Just call with IPCP and run capture on the PC. It even works on VPN.

Thanks for the nice rating and good luck!

[Kidsein Djong]

I had the same problem and thanks to you guys, it was solved! :) 

Just in case, I am replying for reference.

I was configuring Cisco 2801 router with IOS c2801-adventerprisek9-mz.124-24.T8.bin and connecting to PSTN. Location is also Indonesia.

Following steps from http://ciscoflair.blogspot.com/2009/05/cisco-fxo-disconnect-issue.html was unsuccessful. When I used Cisco IP Communicator, it works perfectly. RTP packets were successfully recorded and using Cool Edit Pro I managed to gather the disconnect frequency and cadence

Here is my configuration:

!
voice-port 0/0/0
 trunk-group GROUP1
 supervisory disconnect dualtone mid-call
 supervisory custom-cptone Disconnect
 no battery-reversal
 cptone ID
 timeouts call-disconnect 5
 timeouts wait-release 5
 timing hookflash-out 50
 timing guard-out 1000
 connection plar opx 8000
 caller-id enable
!
voice class custom-cptone Disconnect
 dualtone disconnect
  frequency 450
  cadence 350 350
!