08-13-2012 02:54 PM - edited 03-16-2019 12:41 PM
Hello,
I have a 3825 router with 8 FXO ports running Cisco IOS Software, 3800 Software (C3825-SPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2). The problem we are facing is that after a call is placed through any of the FXO ports and the call is ended by the user, the port remains in off-hook till a reset of the port is done or someone restarts the router. Only then is the port accessible again.
I am thinking of changing the cards, but i do not want to invest in replacing the cards and then find out that this doesnt solve the problem.
The wierd thing is that this issue started on its own accord not too long ago.
Comments and suggestions please!
Regards,
Femi
08-13-2012 02:58 PM
Is the call going to a phone, and which system and version are you using?
http://cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml
08-13-2012 03:07 PM
Hi Paolo,
I'm using a 3825 ISR running Cisco IOS Software, 3800 Software (C3825-SPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2) and CallManager 7.1.
The call is an external call outside the office environment through the PSTN lines (FXO ports).
Regards,
Femi
08-13-2012 03:12 PM
If going to an IP phone, when the IP phone hangs up, the FXO must go on-hook again.
The issue should happen when you have Autoattendant, or call-forward to an external number. Do you use any of that ?
08-13-2012 03:25 PM
Hi Paolo,
The setup is such that a user picks up their IP phone and attempt to make a phone call to someone's mobile number for instance. After the call was successfully established and the conversation is over, both parties disconnect the call. The problem is that after the call has been disconnected by both parties, and you try and access the same line to use, you get a busy tone. Checking on the status of the card shows that the port is in off hook position.
We do have an autoattendant configured, which pretty much handles incoming calls. As for call forward, this is not configured anywhere on the system.
Regards,
08-13-2012 03:35 PM
By your description, the only possible explaination is that either CM doesn't send call teardown message, or router fails to execute it. There are debugs you could take, but I recommend that before that, you update IOS and try again.
08-14-2012 03:25 PM
Hi Paolo,
Will do and revert, thanks.
Regards,
Femi
08-13-2012 03:01 PM
Try this command in the voice port FXO
voice-port 0/1/1
timeouts call-disconnect 3
"Call Disconnect Timeout after Destination Hangs Up in seconds"
or reboot before change the VIC
08-13-2012 03:10 PM
Hello,
I do not want to change the FXO card till I am sure that is the problem and I did state that I always have to reboot the router when the problem starts. Rebooting clears the problem but it is back immediately I attempt a call again and hang up that call.
I have timeouts call-disconnect already configured, see below:
!
voice-port 0/0/0
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/0/1
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 2626878
caller-id enable type 1
!
voice-port 0/0/2
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/0/3
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/1/0
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/1/1
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/1/2
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
voice-port 0/1/3
supervisory disconnect dualtone mid-call
compand-type a-law
timeouts call-disconnect 5
timeouts wait-release 5
connection plar opx 21000
description FXO CONNECTION TO PSTN
caller-id enable
!
Regards,
Femi
08-17-2012 11:56 AM
Hi
please try to use "cptone
custom-cptone voice class and you can call this cptone to voice-port below is example
Under global config
#voice class custom-cptone mytone
dualtone busy
frequency 425 425
cadence 500 500
dualtone ringback
frequency 425 425
cadence 1000 4000
dualtone reorder
frequency 425 425
cadence 250 250
dualtone out-of-service
frequency 425 425
cadence 320 320
note that all frequency and cadence must meet your pstn provider standards
then call this custom-cptone to all voice-port
#voice-port 0/0/0
supervisory custom-cptone mytone
try this
11-18-2013 03:57 PM
I reckon this is the right unswer, you need to configure the cptone, have you tried this femi?
Check this link,
http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml
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