[cisco-voip] Call hunting, ISDN code 0x66

[Peter Grace]

Hello list,

I have a situation where I am receiving a lot of ISDN 0x66 codes (Recovery
on timer expiry) in my calltracker output from one of our AS5400's.  I think
this is indicating to me that the cisco took too long to find an acceptable
destination for the call.  Is this correct?  If so, is there a way to tweak
the time before the thing gives up?  Do we know how many times the cisco
will try to hunt to the next SIP gateway before it gives up and drops the
call?

The reason why I was thinking it was taking too long is that almost all of
these 0x66 errors have the same symptoms, 0.00 conn time, and a total call
time of an average of 8.5 seconds long.  If I'm on the wrong track please
let me know; I'd like to resolve this issue.

Aug  6 19:55:34 psip02-mci.local 560071: Aug  6 23:55:34.124:
%CALLTRKR-6-CALL_RECORD: ct_hndl=559890, service=None, origin=Answer,
category=IsdnSync, DS0 slot/port/ds1/chan=1/0/3/1, called=XXXXX,
calling=XXXXX, resource slot/port=(n/a)/(n/a), userid=(n/a), ip=0.0.0.0,
account id=559909, setup=08/06/2008 23:54:48, conn=0.00, phys=0.00,
service=0.00, authen=0.00, init-rx/tx b-rate=0/0, rx/tx chars=0/0,
time=8.16, disc subsys=ISDN, disc code=0x66, disc text=Recovery on timer
expiry


Aug  6 19:55:34 psip02-mci.local 560075: Aug  6 23:55:34.124:
%CALLTRKR-6-CALL_RECORD: ct_hndl=559894, service=None, origin=Answer,
category=IsdnSync, DS0 slot/port/ds1/chan=1/0/3/8, called=XXXXX,
calling=XXXXX, resource slot/port=(n/a)/(n/a), userid=(n/a), ip=0.0.0.0,
account id=559913, setup=08/06/2008 23:54:52, conn=0.00, phys=0.00,
service=0.00, authen=0.00, init-rx/tx b-rate=0/0, rx/tx chars=0/0,
time=8.24, disc subsys=ISDN, disc code=0x66, disc text=Recovery on timer
expiry


Aug  6 19:55:34 psip02-mci.local 560076: Aug  6 23:55:34.124:
%CALLTRKR-6-CALL_RECORD: ct_hndl=559895, service=None, origin=Answer,
category=IsdnSync, DS0 slot/port/ds1/chan=1/0/3/10, called=XXXXX,
calling=XXXXX, resource slot/port=(n/a)/(n/a), userid=(n/a), ip=0.0.0.0,
account id=559914, setup=08/06/2008 23:54:53, conn=0.00, phys=0.00,
service=0.00, authen=0.00, init-rx/tx b-rate=0/0, rx/tx chars=0/0,
time=8.04, disc subsys=ISDN, disc code=0x66, disc text=Recovery on timer
expiry


Thanks,
Pete
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