How to Know Frequency & cadence of Busy tone

Can anyone tell me how to get Frequency & cadence of Busy tone from wave file

Thanks
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Commented:
Hi, I used this program to help sort out busy tone detecion in Asterisk from a recorded wav file, where I wanted to check cadence.

Author Commented:
I'm confused about how to check it ?

It will be a great if you will provide me a Frequency & cadence value from recorded Busy tone, If you can provide me then pls download the from below link
http://dl.dropbox.com/u/5158856/New%20Tone.mp3

Thanks
Commented:
I will take a look at it.
Commented:
Hi, It looks like 500hz 500ms. Take a look at these two images one is from your supplied sample sound file and the other is one I generated to 500hz 500ms with;

http://www.nch.com.au/tonegen/index.html

a free tone generator and I edited it with wavepad.

sample.png
generated-tone.png
Author Commented:
IF 500 is frequency so what will be Cadence value of this tone?
Commented:
I think it is 500 on 500 off?

This is from asterisk indications.conf take a look at the busy tones.

in]
description = India
dial = 400*25
busy = 400/750,0/750
ring = 400*25/400,0/200,400*25/400,0/2000
congestion = 400/250,0/250
callwaiting = 400/200,0/100,400/200,0/7500
dialrecall = !350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,350+440
record = 1400/500,0/15000
info = !950/330,!1400/330,!1800/330,0/1000
stutter = !350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,350+440

[au]
description = Australia
; Reference http://www.acif.org.au/__data/page/3303/S002_2001.pdf
; Normal Ring
; Distinctive Ring 1 - Forwarded Calls
; 400,400,200,200,400,1400
; Distinctive Ring 2 - Selective Ring 2 + Operator + Recall
; 400,400,200,2000
; Distinctive Ring 3 - Multiple Subscriber Number 1
; 200,200,400,2200
; Distinctive Ring 4 - Selective Ring 1 + Centrex
; 400,2600
; Distinctive Ring 5 - Selective Ring 3
; 400,400,200,400,200,1400
; Distinctive Ring 6 - Multiple Subscriber Number 2
; 200,400,200,200,400,1600
; Distinctive Ring 7 - Multiple Subscriber Number 3 + Data Privacy
; 200,400,200,400,200,1600
; Tones
dial = 413+438
busy = 425/375,0/375
ring = 413+438/400,0/200,413+438/400,0/2000
; XXX Congestion: Should reduce by 10 db every other cadence XXX
congestion = 425/375,0/375,420/375,0/375
callwaiting = 425/200,0/200,425/200,0/4400
dialrecall = 413+438
; Record tone used for Call Intrusion/Recording or Conference
record = !425/1000,!0/15000,425/360,0/15000
info = 425/2500,0/500
; Other Australian Tones
; The STD "pips" indicate the call is not an untimed local call
std = !525/100,!0/100,!525/100,!0/100,!525/100,!0/100,!525/100,!0/100,!525/100
; Facility confirmation tone (eg. Call Forward Activated)
facility = 425
; Message Waiting "stutter" dialtone
stutter = 413+438/100,0/40
; Ringtone for calls to Telstra mobiles
ringmobile = 400+450/400,0/200,400+450/400,0/2000

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