asterisk users - Aug 2012 - CHANNEL arguments documentation?

Using

exten => h,n,set(CDR(llp)=${CHANNEL(rtpqos,audio,local_lostpackets)})

gives me

> [Aug 24 12:08:10] WARNING[12087]: sip/dialplan_functions.c:221
>> sip_acf_channel_read: Unrecognized argument
>> 'rtpqos,audio,local_lostpackets' to CHANNEL
>
> [Aug 24 12:08:10] WARNING[12087]: func_channel.c:393 func_channel_read:
>> Unknown or unavailable item requested:
'rtpqos,audio,local_lostpackets'
>
> According to
http://lists.digium.com/pipermail/asterisk-users/2011-September/266075.html the
variable names have changed, however I couldn't find an updated
documentation or understand from the mail reply, what I have to change in
the example above.
So, can somebody please tell me where to get an updated documentation or
how to fix my problem? I am using Asterisk 1.8.10.1.

Thanks :-)
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pbx*CLI> core show function CHANNEL

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces
at lists.digium.com] On Behalf Of Stefan at WPF
Sent: Friday, August 24, 2012 6:37 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] CHANNEL arguments documentation?

Using


	exten => h,n,set(CDR(llp)=${CHANNEL(rtpqos,audio,local_lostpackets)}) 

gives me 
 

		[Aug 24 12:08:10] WARNING[12087]: sip/dialplan_functions.c:221
sip_acf_channel_read: Unrecognized argument
'rtpqos,audio,local_lostpackets' to CHANNEL

		[Aug 24 12:08:10] WARNING[12087]: func_channel.c:393 func_channel_read:
Unknown or unavailable item requested: 'rtpqos,audio,local_lostpackets'

According to
http://lists.digium.com/pipermail/asterisk-users/2011-September/266075.html the
variable names have changed, however I couldn't find an updated
documentation or understand from the mail reply, what I have to change in the
example above.
So, can somebody please tell me where to get an updated documentation or how to
fix my problem? I am using Asterisk 1.8.10.1.

Thanks :-)