DSP upgrade question

[pschwendiman]

We have a 2821 ISR and want to set up conferencing.  When I go to setup sessions I get 0-0 and understand this means I'm out of DSP.  So, I've found that it looks like the 2821 will hold 3 modules so if I just drop another PVDM2-16 in will it work?  Is there a limit to how big of a PVDM2 you can put in a slot?  Does it only have to be PVDM2-16 or could I add a PVDM2-32?

Thanks!

CPI#sh inven
NAME: "2821 chassis", DESCR: "2821 chassis"
PID: CISCO2821         , VID: V07 , SN: FTX1415AHRV

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot
0", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC14232C1U

NAME: "3rd generation two port EM voice interface daughtercard on Slot 0 SubSlot
1", DESCR: "3rd generation two port EM voice interface daughtercard"
PID: VIC3-2E/M         , VID: V01 , SN: FOC142468KY

NAME: "3rd generation two port FXS DID voice interface daughtercard on Slot 0 Su
bSlot 2", DESCR: "3rd generation two port FXS DID voice interface daughtercard"
PID: VIC3-2FXS/DID     , VID: V02 , SN: FOC14194Y0P

NAME: "3rd generation two port FXS DID voice interface daughtercard on Slot 0 Su
bSlot 3", DESCR: "3rd generation two port FXS DID voice interface daughtercard"
PID: VIC3-2FXS/DID     , VID: V02 , SN: FOC14194YDR

NAME: "PVDMII DSP SIMM with Two DSPs on Slot 0 SubSlot 4", DESCR: "PVDMII DSP SI
MM with Two DSPs"
PID: PVDM2-32          , VID: V01 , SN: FOC14106CD6

NAME: "Integrated Service Engine for Modular and Integrated Services Routers on
Slot 1", DESCR: "Integrated Service Engine for Modular and Integrated Services R
outers"
PID: NME-CUE           , VID: V03 , SN: FOC14191GYP

Cisco 2821 (revision 53.51) with 763904K/22528K bytes of memory.
Processor board ID FTX1415AHRV
2 Gigabit Ethernet interfaces
24 Serial interfaces
1 terminal line
2 Channelized/Clear T1/PRI ports
1 Virtual Private Network (VPN) Module
4 Voice FXS interfaces
2 Voice E & M interfaces
1 cisco Integrated Service Engine(s)
   Cisco Unity Express 7.1.7 in slot 1
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
250880K bytes of ATA CompactFlash (Read/Write)

[Rob Huffman]

Hi Preston,

Good question

Here's the scoop;

Any PVDM2 is supported in any native PVDM slot Cisco 2801, 2811, 2821, 2851, 3825, and 3845 and on NM-HDV2 (only PVDM2s are supported natively, not first-generation PVDMs)

From this good doc;

http://www.cisco.com/en/US/prod/collateral/routers/ps5854/product_data_sheet0900aecd80169812_ps5855_Products_Data_Sheet.html

Cheers!

Rob

[pschwendiman]

The root source of this is that we can only conference three participants right now (obviously from the built-in software bridge) and want to be able to conference more. Also, we can't see the ConfLi option on our phones (all 7940/60 series). If I put in another DSP and get the software side setup from what I've found I'll be able to conference more than 3 participants but does the ConfLi start showing up as an option on the phones?

Thanks again!

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