[cisco-voip] FXO disconnect problem with Panasonic KX-TD500

[marvin_mejia at epson.co.cr]

         We have a Cisco 2800 with a FXO card connected to a Panasonic KX-TD500, 
with the same problem presented by Juraj Kovac around a year ago.
        Has anyone solved this problem?


Thanks in advance,


https://puck.nether.net/pipermail/cisco-voip/2004-July/001015.html

Juraj Kovac jkovac at cnc.sk 
Wed Jul 14 13:18:28 EDT 2004 
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Hello,

I have Cisco1760 with voice FXO card connected to Panasonic 616. I have 
problem when call is ended on the other side FXO port remains in off-hook 
state ad infinity until it is shuting down manually. I tried any 
combinations 
of supervisory disconnect settings (signal, anytone, dualtone pre-connect, 

dualtone mid-call) and I also tried every cptone locale settings.
I see that the router canot recognize BUSY tone from PBX when other side 
closes connection. Where the problem is? Does it have relationship to the 
cptone locale settings? Have I define cptone-custom settings? In this case 
I 
need freq-pair and cadence settings for all types of progress tones of 
this 
type of PBX.
My IOS version is 12.2.15T5. I have the following settings on FXO port:

voice-port 2/0
 playout-delay nominal 1500
 playout-delay mode fixed
 no comfort-noise
 timeouts initial 30
 timeouts interdigit 6
 timeouts wait-release 10
 description ### Extension 17 ###
 supervisory disconnect dualtone mid-call
 no battery-reversal

---> cptone US default


I am including tracing of the problem:

When all is idle:
prompt>sh voice call sum
PORT           CODEC    VAD VTSP STATE            VPM STATE
============== ======== === ==================== ======================
2/0             -         -  -                     FXOLS_ONHOOK
2/1             -         -  -                     FXOLS_ONHOOK

I am calling extension 17:

prompt>sh voice call sum
PORT           CODEC    VAD VTSP STATE            VPM STATE
============== ======== === ==================== ======================
2/0             -         -  -                     FXOLS_WAIT_RING_MIN
2/1             -         -  -                     FXOLS_ONHOOK

after 1st ring router responds with dial tone:

prompt>sh voice call sum
PORT           CODEC    VAD VTSP STATE            VPM STATE
============== ======== === ==================== ======================
2/0             None      y  S_DIGIT_COLLECT       FXOLS_PROCEEDING
2/1             -         -  -                     FXOLS_ONHOOK

I hang up the phone. Router waits 30 s for digit collection (timeouts 
initial). After this timeout router enters WAIT_RELEASE state:

prompt>sh voice call sum
PORT           CODEC    VAD VTSP STATE            VPM STATE
============== ======== === ==================== ======================
2/0             None      y  S_WAIT_RELEASE_NC     FXOLS_PROCEEDING
2/1             -         -  -                     FXOLS_ONHOOK

In this state router remains ad infinity.



Thanks,
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