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FXO Outgoing problem

I have one router with 12 FXO ports ,

we was facing a problem in incoming calls that the call when closed the port keep ringing ,

and we open a TAC case with cisco and they solved our problem for incoming ports,

but now we want to use the port for incoming and outgoing calls but we face a problem that when we make an outgoing call the line dropp after the first ring below is the a sample configuration for one port :

voice class dualtone-detect-params 1
freq-max-deviation 25
cadence-variation 25
!
!
voice class custom-cptone test1
dualtone busy
  frequency 420 425
dualtone reorder
  frequency 420 425
  cadence 522 509
dualtone disconnect
  frequency 420 425
  cadence 522 509


!

voice-port 0/1/2
supervisory disconnect dualtone mid-call
supervisory custom-cptone test1
supervisory dualtone-detect-params 1
timeouts call-disconnect 1
timeouts wait-release 1
timing hookflash-out 50
caller-id enable

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