[Asterisk-Users] Finding the busypattern

[Doug Lytle]

Hey everybody,

I've had issues with detecting call disconnects on the Centrex system 
and an Adit 600.  I've discovered that if I set the channel bank's FXO 
to lscpd, even though the CO says they don't support, that Asterisk can 
see the hangups.

The catch?  Asterisk can no longer seize the line.

I've used this to my advantage, since I have 13 lines to work with.  (5) 
+1 for auto-attendant are setup for incoming only (lscpd), the rest for 
outgoing(ls).  I really want to get all lines usable, so I don't have to 
babysit the system on the chance that a line will get a caller on one of 
the 7-13 lines without call disconnect.

I figured I should be able to do this with busy detect.  I've tried:

busydetect=yes
busypattern= (120,60)
busycount=30

On our Centrex system, after the hangup, I get a 2nd dial tone.  Then a 
voice saying i've taken too long to dial, then a very fast busy.  I've 
record these pulses into a wave and tried to use Wavepad to get an idea 
of the pulses in milliseconds.  It looks to be 100ms on 60ms off.

When putting this into place though, Asterisk never hangs up.  Is there 
something else that I'm missing?

Suggestions would be appreciated.

Thanks,

Doug