AA prompt recording in .au format

I want to replace the default autoattendant prompt file "en_bacd_allagentsbusy.au" with a new one in A-law encoding.
I have done it using a PC and a converter, but it will be easier for my customer to record a new file using a phone connected to the UC520.
What are the CLI commands to set up a phone for recording an au-file?
(I think the AvT feature creates wav-files)
I use the AA script app-b-acd-aa-2.1.2.2.tcl.

Comments
This is just called
This is just called Administration via telephone... Here is an example using extension 1094 to record the default auto attendant. Remember to setup a user as admin in CUE
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In CME type something like this:
dial-peer voice 2002 voip
description AA RECORDING VIA TELEPHONE
destination-pattern 1094
session protocol sipv2
session target ipv4:10.1.10.1
dtmf-relay sip-notify
codec g711ulaw
no vad
!
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In CUE type something like this
groupname Administrators owner USERNAME
groupname Administrators member USERNAME
groupname Administrators privilege ManagePrompts
ccn trigger sip phonenumber 1094
application "promptmgmt"
enabled
maxsessions 1
end trigger
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Now dial into 1094 and add USERNAME extension and password and then it will say something like
press 1 to create a new prompt or 2 to manage previsouly recorded prompts. I usually hit 2 and re-record the default Cisco voice..
John Nikolatos www.niktek.com
and forgot to mention for
and forgot to mention for this bit
"7. type in ' copy tftp://192.168.10.13/en_bacd_allagentsbusy.au flash:'"
The ip address here is shown in TFTP32 software at the top in the middle (where it state your 'server interfaces')
oo forgot to mention where to get tftp from...
To Download TFTP32 go to http://tftpd32.jounin.net/ - Its FREE
A Solution!!!
I have just had a Cisco Tech sort this issue for me and i have written down everything he did! I searched for days for a solution on google and had no luck but now here is the solution to replace the default autoattendant prompt file "en_bacd_allagentsbusy.au" with a new one !!
TO CREATE en_bacd_allagentsbusy sound file
1. Record en_bacd_allagentsbusy in 'sound recorder' (start, all programs, accessories, entertainment,sound recorder) and save as 'en_bacd_allagentsbusy.wav' file (this is what it saves it as by default)
2. Download 'Switch Audio File Converter' - the free one (so we can change '.wav' to '.au' (bacd requires this file format) from this website: http://www.nch.com.au/switch/
3. Open the 'Switch Audio File Converter' and then click on 'add file' (top left) and find your 'en_bacd_allagentsbusy.wav' you created earlier in the sound recorder
4. Make sure the 'output format' (bottem left) is set to '.au' and in the 'encoder options' (bottem left) you have the following settings set: Codec= 'uLaw', Sample Rate= '8000', Channels= 'mono'
5. Press 'Convert'
6. Now follow the ' TO UPLOAD en_bacd_allagentsbusy.au' instructions below
TO UPLOAD en_bacd_allagentsbusy.au
1. Download TFTPD32
2. Open up TFTP32
3. Browse to your directory with the '.au' file you created earlier in the 'current directory' field
4. The go to 'Start', 'Run' and type 'cmd'
5. type in 'Telnet 10.1.10.1' (the ip address being that of your UC500)
6. type in 'sh flash' then enter
7. type in ' copy tftp://192.168.10.13/en_bacd_allagentsbusy.au flash:'
8. type in ' reload of flash:/en_bacd_allagentsbusy.au'
You new 'en_bacd_allagentsbusy.au' should now work!
thank you very much for your
thank you very much for your suggestion, jonpetrie :)