Question on 881v support for DSPFARM features

[harresh123]

I am trying to configure a 881v router with dspfarm to support hardware based conferencing and when i try to activate the dspfarm feature it throws an error "DSPfarm features are not supported on this platform type". It has a PVDM2-16 in there with DSP Type C5510. From what i understand these dsp's are reserved for IP to TDM calls and couldn't be used for conferencing etc. Can someone shed some light on this ? Is ccm based software conferencing the only alternative for 881v based deployments ?

The IOS version that i have running on this is c880voice-universalk9-mz.152-4.M6.bin

sh voice dsp

----------------------------FLEX VOICE CARD 0 -----------------------
-------
*DSP VOICE CHANNELS*

CURR STATE : (busy)inuse (b-out)busy out (bpend)busyout pending
LEGEND : (bad)bad (shut)shutdown (dpend)download pending

DSP DSP DSPWARE CURR BOOT PAK TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABRT PACK COUNT
====== === == ========= ========== ===== ======= === == ========= == ==== ============
*DSP SIGNALING CHANNELS*
DSP DSP DSPWARE CURR BOOT PAK TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABRT PACK COUNT
====== === == ========= ========== ===== ======= === == ========= == ==== ============
C5510 001 05 {flex} 32.1.5 alloc idle 0 0 3 02 0 53/0
C5510 001 06 {flex} 32.1.5 alloc idle 0 0 4 02 0 54/0
C5510 001 07 {flex} 32.1.5 alloc idle 0 0 5 06 0 53/0
C5510 001 08 {flex} 32.1.5 alloc idle 0 0 6 06 0 53/0
C5510 001 09 {flex} 32.1.5 alloc idle 0 0 7 02 0 37/0
------------------------END OF FLEX VOICE CARD 0 ----------------------------

[Jaime Valencia]

For PVDM2 the whole DSP needs to have the FW that is used for conferencing, you only have one DSP in the PVDM2-16, and it seems you're already using some channels for TDM.

[harresh123]

Thanks for chiming in Jaime. I did a little more research and looks like 881v only has one internal packet voice DSP module 2-16 (PVDM2-16). We couldn't add more DSP modules to an 881v to dedicate for conferencing. 

[Mohammed al Baqari · Accepted solution]

881 is small buisness router and can't run conferencing.  you need to move to 2900 if you want conferencin (even 1900 isnt supported )