[cisco-voip] how to load dsp firmware

[Matt Slaga (US)]

DSPs are not user upgradeable, they must be replaced.  Open a TAC case
referencing your bug ID.and see if they can replace them.

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of McLean Pickett
Sent: Wednesday, June 07, 2006 11:25 AM
To: Ruttman, Peter G.; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] how to load dsp firmware


Pete -
 
I was given explicit direction not to remove the file from firmware as
the DSP's would revert to the old firmware. 
 
McLean

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ruttman, Peter
G.
Sent: Wednesday, June 07, 2006 10:23 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] how to load dsp firmware


TAC says we may be experiencing this bug:
 

CSCsd54344: DSP: Persistent echo heard on c5510 DSPs with 4.4.13 DSPware
or higher

Symptom:

Under certain circumstances, continual echo may be heard. The echo is
perisitent and the DSP echo canceller does not converge.

 

Conditions:

DSPware 4.4.13 or higher on C5510 DSPs are required to experience this
problem.

 

Workaround:

Downgrading DSPware to 4.4.12 or earlier resolves the echo issue.

 

TAC send is firmware and these instructions:

INSTRUCTIONS:

1. Put the file on the flash.

2. Reload the router.

3. Verify new DSP version ' sh voice dsp' (should be 4.4.18)

3. IMPORTANT: Remove file from flash after verification

 

However, I did the show voice dsp and saw no change in the dsp version
from before getting the new dsp firmware.  Can someone tell me if this
is the correct way to load firmware on an NM-HDV2 on a 3745 voice
gateway?

Thanks,

Pete Ruttman

CCNA  CCVP

Senior Network Engineer

Foley & Lardner LLP

 

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