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Why my routers says I have two voice cards (DSP)

Hi all,

I just wanted to ask you, why my router has 2 voice cards, in the show run, look at my configuration.

voice-card 0

dspfarm

dsp services dspfarm

!

voice-card 1

!

!

voice rtp send-recv

!

voice service voip

ip address trusted list

  ipv4 10.2.50.5

  ipv4 10.0.0.0 255.0.0.0

  ipv4 10.2.50.9

h323

modem passthrough nse codec g711ulaw

!

But, when I put, show inventory, it says that the router only have one card.

#show inv

NAME: "CISCO3945-CHASSIS", DESCR: "CISCO3945-CHASSIS"

PID: CISCO3945-CHASSIS , VID: V02, SN: FTX

NAME: "Cisco Services Performance Engine 250 for Cisco 3900 ISR on Slot 0", DESCR: "Cisco Services Performance Engine 250 for Cisco 3900 ISR"

PID: C3900-SPE250/K9   , VID: V04 , SN: FOC

NAME: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"

PID: VWIC3-2MFT-T1/E1  , VID: V01 , SN: FOC

NAME: "3rd generation four port FXS DID voice interface daughtercard on Slot 0 SubSlot 1", DESCR: "3rd generation four port FXS DID voice interface daughtercard"

PID: VIC3-4FXS/DID     , VID: V03 , SN: FOC

NAME: "PVDM3 DSP DIMM with 192 Channels on Slot 0 SubSlot 3", DESCR: "PVDM3 DSP DIMM with 192 Channels"

PID: PVDM3-192         , VID: V01 , SN: FOC

NAME: "Network Module Adapter for SM Slot on Slot 1", DESCR: "Network Module Adapter for SM Slot"

PID: SM-NM-ADPTR       , VID: V01, SN: FOC

NAME: "Enhanced High Density Voice Network Module on Slot 1", DESCR: "Enhanced High Density Voice Network Module"

PID: NM-HD-2VE         , VID: V01 , SN: FOC

NAME: "Services Module with Services Ready Engine on Slot 2", DESCR: "Services Module with Services Ready Engine"

PID: SM-SRE-910-K9     , VID: V01 , SN: FOC

NAME: "C3900 AC Power Supply 1", DESCR: "C3900 AC Power Supply 1"

PID: PWR-3900-AC       , VID: V03 , SN: QCS

¿am I wasting DSP resources by not using that "phantom" card?

I am using that DSP for the following configuration.

2 E1 DS0 voice link configuration (60) channels.

dspfarm profile 1 transcode 

codec g729r8

codec g729br8

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

maximum sessions 8

associate application SCCP

!

dspfarm profile 2 conference 

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

codec g729br8

maximum sessions 4

associate application SCCP

!

What I meant to ask you, is...

do I only have 1 DSP card?

do that DSP card is the only card I need to perfectly fit my configuration?

I've read about DSP, but I only know fundamentals. I do not know very much the meaning on my router configuration. I just had a router with a similar configuration, copy/pasted it, and then in works.

Regards,

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Master

Why my routers says I have two voice cards (DSP)

Blank NM-HD-2VE card in slot 1 via an adapter is what creates the dsp voice card, though there are not PVDMs in it, so no need to worry about it.

HTH,

Chris

5 REPLIES 5
VIP Advisor

Re: Why my routers says I have two voice cards (DSP)

Your High Density Voice Card has PVDM's on it.  They are most likely PVDM2's and you'll have some limitations using them in the same pool as your PVDM3's.

EDIT: Read through your inventory too fast.  If you had PVDMs on your module, they woulod be PVDM2's.

Anthony Holloway

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Anthony Holloway

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Engager

Re: Why my routers says I have two voice cards (DSP)

YOu only have one DSP , PVDM3-192  which is on slot0,  Kindly find the below link.

http://www.cisco.com/en/US/prod/collateral/modules/ps3115/data_sheet_c78-553971.html

Thank you

please rate if this will help you

Hall of Fame Master

Why my routers says I have two voice cards (DSP)

Blank NM-HD-2VE card in slot 1 via an adapter is what creates the dsp voice card, though there are not PVDMs in it, so no need to worry about it.

HTH,

Chris

VIP Mentor

Re: Why my routers says I have two voice cards (DSP)

On the DSP side of things, you have a PVDM3-192. This PVDM has a total of 5 dsps in it. It is a combination of a single PVDM3-128 and PVDM3-64.

Each PVDM3-128 has 3 dsps and each PVDM3-64 has 2 dsps..Hence giving you a total of 5 dsps..

You can read more on PVDM2 and PVDM3 credit allocations here..

https://supportforums.cisco.com/docs/DOC-29164

Attached is a Q and A that helps you to understand Cisco PVDM better

Please rate all useful posts

"opportunity is a haughty goddess who waste no time with those who are unprepared"

Please rate all useful posts

Why my routers says I have two voice cards (DSP)

Hi Cris, I didn't realize I had a Voice Card withput DSP, I didnt realice a NM could create a "Voice Card conf" even without a PVDM on it.

Well that was what I understood, also i'll check the links posted on this thread.

Thank you all of you for your time, your help is very useful.

regards.

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