From: James.Jackson@broadwing.com
Date: Thu Mar 06 2003 - 01:12:56 GMT-3
That makes sense...
Thanks !
James
-----Original Message-----
From: Jason Sinclair [mailto:sinclairj@powertel.com.au]
Sent: Wednesday, March 05, 2003 9:24 PM
To: Jackson, James (DS Engineering); ccielab@groupstudy.com
Subject: RE: OT VoIP question
James,
I think this is a terminology issue as I have seen this as adding -6dB gain
for example....which is actually a drop....
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
email: sinclairj@powertel.com.au
-----Original Message-----
From: James.Jackson@broadwing.com [mailto:James.Jackson@broadwing.com]
Sent: Thursday, 6 March 2003 11:03
To: ccielab@groupstudy.com
Subject: RE: OT VoIP question
I've seen several mentions of "adding gain" in Cisco VoIP solution. Just
curious where this would be applicable ? In an actual telephone network
you'd typically set a 6dB to 10dB drop to optimize voice quality and
echo-can behavior.
Thanks,
James
-----Original Message-----
From: Mike Williams [mailto:ccie2be@swbell.net]
Sent: Tuesday, March 04, 2003 11:50 PM
To: 'Tony H.'
Cc: 'CCIE LAB (E-mail)'
Subject: RE: OT VoIP question
Here's how I read this:
input gain
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
fvvfax_r/vrf_g.htm#1287413
output attenuation
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
fvvfax_r/vrf_g.htm#1024291
The higher the dB value you give on the command, the more gain (boost)
or attenuation (reduction) is applied to the signal.
And they could work together.... "If the voice level is too high, you
can decrease the volume by either decreasing the input gain or
increasing the output attenuation."
HTH,
Mike W.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Tony H.
Sent: Tuesday, March 04, 2003 9:31 PM
To: Emad; CCIE LAB (E-mail)
Subject: Re: OT VoIP question
Not sure on this one but think this is how it works..
Under voice-port
output attentuation <positive value> if this is
higher, then the sound is fainter
input gain <negative value> if this is more negative,
then volume is higher
HTH
--- Emad <emad@zakq8.com> wrote:
> Dear all,
> Somebody asked me a question about a solution of
> VoIP of his own with very basic configurations which including only
> routing between calls but he faced that in one side the voice is weak
> to be heard and in the other one , the voice is loud more than
> enough to be heard , what is the problem exactly?
>
> Emad,
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