[cisco-voip] errors with IOS transcoder

[Barry Howser]

I am getting ready to add a VWIC3 T1 (and PRI) to my 2900 series ISR router
running 15.3(2) and I'm trying to configure an IOS transcoder, I have
PVDM3-64 (2 32 modules). When I get into the transcode sub configuration it
gives me an "Unrecognised Command" error when trying to preference the
codecs. What I am doing wrong?

router(config)#dspfarm profile 6 transcode
router(config-dspfarm-profile)#codec ?
% Unrecognized command
router(config-dspfarm-profile)#codec

I've been reading that I may need to actually have the T1 card in the
router first but I can't find anything to confirm that. I've been reading
here:
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cminterop/configuration/15-mt/dia-15-mt-book/vc-enh-confr-vgr.html#GUID-2E7DACC4-090A-4E89-BC1B-006E79BF0BC0
which seems to suggest that PVDM3 might not be able to support transcoding?

Can anyone shed a little light my way?

thank you
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