AS you said, the "dspfarm profile" command was introduced in 12.3(8)T version and the security keyword from 12.4(11)XW.
https://www.cisco.com/en/US/docs/ios/12_3t/voice/command/reference/vrht_d2.html#wp1452649
Could you please run the following commands as shown below in my example
and provide me with the input of this please:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Router#show ver
Router(config)#dspfarm ?
codec Configure codec related parameters for DSPFARM service
confbridge Specify the conferencing related parameters values
connection Specify the dspfarm connection related parameters values
profile Specify the DSPFARM profile information
rtp Specify the RTP related parameters values
transcoder Specify the transcoding related parameters values
Router(config)#dspfarm profile ?
<1-65535> Profile ID
Router(config)#dspfarm profile 1 ?
conference Profile type Conference
mtp Profile type MTP
transcode Profile type Transcoding
Router((config)#dspfarm profile 1 conference ?
security Enable security for the dspfarm service
Router((config)#dspfarm profile 1 conference security ?
Router((config)#dspfarm profile 1 conference security
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~