[cisco-voip] having echo on voice calls

pnowicki at neo.rr.com pnowicki at neo.rr.com
Fri Jul 14 23:11:48 EDT 2006


I've also seen a dsp firmware bug that causes intermittent echo with 
dsp releases higher than 4.4.10. TAC had me down grade the dsp 
firmware to 4.4.10..

----- Original Message -----
From: James Grace <jgrace at digitelusa.net>
Date: Thursday, July 13, 2006 10:44 am
Subject: Re: [cisco-voip] having echo on voice calls
To: 'Aman Chugh' <aman.chugh at gmail.com>
Cc: cisco-voip at puck.nether.net

> 7912080001sccp0511117a
> 
> 
> 
>  _____  
> 
> From: Aman Chugh [mailto:aman.chugh at gmail.com] 
> Sent: Thursday, July 13, 2006 12:13 AM
> To: James Grace
> Cc: Jason Aarons (US); cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] having echo on voice calls
> 
> 
> 
> Whats the Phone load on the ipphone which are reporting echo.
> 
> On 7/12/06, James Grace <jgrace at digitelusa.net> wrote: 
> 
> CS2811GW01#show voice dsp
> 
> 
> 
> DSP  DSP             DSPWARE CURR  BOOT                         PAK
> TX/RX
> 
> TYPE NUM CH CODEC    VERSION STATE STATE   RST AI VOICEPORT TS 
> ABORT  PACK
> COUNT
> 
> ==== === == ======== ======= ===== ======= === == ========= == =====
> ============
> 
> 
> 
> ----------------------------FLEX VOICE CARD 0 ---------------------
> ---------
> 
>                           *DSP VOICE 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 01 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  04    0
> 6497/6614
> 
> C5510 001 02 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  08    0
> 6233/3007
> 
> C5510 001 03 fax       4.4.15 busy  idle      0  0 0/0/0:23  10    0
> 4796/875
> 
> C5510 001 05 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  20    0
> 2612/2676
> 
> C5510 002 01 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  23    0
> 3491/3581
> 
> C5510 002 02 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  01    0
> 1205/1239
> 
> C5510 002 03 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  03    0
> 118/129
> 
> C5510 002 04 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  22    0
> 9386/9547
> 
> C5510 002 05 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  21    0
> 3051/3128
> 
> C5510 002 06 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  17    0
> 1257/1303
> 
> C5510 005 01 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  19    0
> 2/29
> 
> C5510 005 02 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  06    0
> 4707/4378
> 
> C5510 005 03 g711ulaw  4.4.15 busy  idle      0  0 0/0/0:23  02    0
> 2673/2773
> 
>                           *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 002 01 {flex}    4.4.15 alloc idle      0  0 0/2/0     02    0
> 300/0
> 
> C5510 002 02 {flex}    4.4.15 alloc idle      0  0 0/2/1     06    0
> 355/0
> 
> C5510 002 03 {flex}    4.4.15 alloc idle      0  0 0/2/2     10    0
> 36/0
> 
> C5510 002 04 {flex}    4.4.15 alloc idle      0  0 0/2/3     14    0
> 36/0
> 
> ------------------------END OF FLEX VOICE CARD 0
> ----------------------------
> 
> 
> 
>  _____  
> 
> From: Jason Aarons (US) [mailto: jason.aarons at us.didata.com] 
> Sent: Wednesday, July 12, 2006 3:40 PM
> 
> 
> To: James Grace
> Subject: RE: [cisco-voip] having echo on voice calls
> 
> 
> 
> Send a show voice dsp,
> 
> 
> 
> Do you get the echo IP Phone to IP Phone ?  or just IP Phone to 
> Gateway ?
> What type gateway? PRI or T1 CAS ?  
> 
> 
> 
>  _____  
> 
> From: James Grace [mailto: jgrace at digitelusa.net] 
> 
> 
> Sent: Wednesday, July 12, 2006 2:20 PM
> To: Jason Aarons (US)
> Cc: cisco-voip at puck.nether.net
> 
> Subject: RE: [cisco-voip] having echo on voice calls
> 
> 
> 
> Will the below clip tell me if something set wrong as for as echo. 
> No
> matter what I try they are still getting the echo.  And its on the 
> ip phone
> side.  Im made several changes to the network.  Nothing works.  It 
not
> really bad and not durning the whole conversations(calls) by it 
> comes and
> goes 
> 
> 
> 
> show call active voice brief
> 
> 
> 
> 242F : 9358 163229920ms.1 +0 pid:0 Originate  connecting
> 
> dur 00:01:05 tx:3268/522880 rx:3185/509600
> 
> IP 10.5.5.45:29116 <http://10.5.5.45:29116/>  SRTP: off rtt:0ms
> pl:58400/1200ms lost:59/3/1 delay:70/65/75ms g711ulaw
> 
> media inactive detected:n media contrl rcvd:n/a timestamp:n/a
> 
> 242F : 9357 163229920ms.2 +0 pid:999020 Originate  active
> 
> dur 00:01:05 tx:3185/535080 rx:3271/523360
> 
> Tele 0/0/0:23 (9357) [0/0/0.21] tx:65370/65370/0ms g711ulaw 
> noise:-63
> acom:45  i/0:-23/-55 dBm
> 
> 
> 
>  _____  
> 
> From: Jason Aarons (US) [mailto: jason.aarons at us.didata.com] 
> Sent: Friday, July 07, 2006 3:16 PM
> To: James Grace
> Subject: RE: [cisco-voip] having echo on voice calls 
> 
> 
> 
> Send a show dsp, what dspware version do you have, there are bugs 
> in 8.2.0,
> tac recommended I look at 8.4.0  -jason 
> 
> 
> 
>  _____  
> 
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net ] On Behalf Of James Grace
> Sent: Friday, July 07, 2006 2:38 PM
> To: cisco-voip at puck.nether.net; nmarus at gmail.com
> Subject: [cisco-voip] having echo on voice calls
> 
> 
> 
> I just changed my echo parameters to 
> 
> Input -3
> 
> Output au  3
> 
> Echo can covera  64  
> 
> And my echo seem to be worse,  My question is was is the default 
> if I want
> to change it back.  And is there any thing else I can try or look 
> for 
> 
> James D. Grace 
> 
> CCNP CCNA MCSE MCDBA
> 
> Sr. System Engineer / Professional Svc.
> 
> Digitel Corporation
> 
> 
> 
>  _____  
> 
> 
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