Could I set my qos.ethernet.rtp.user_priority and rtp.precedence to 6 or 5 is 
the max?

I have a layer 3 switch which I can use to golbally set CoS settings.  I think 
it's  a qos issue but I'm not sure what direction is best for such a small 
network of 8 phones and 6 remote users.




-----Original Message-----
From: "Josh Patten" [[email protected]]
Date: 05/14/2010 09:34 AM
To: [email protected]
Subject: Re: [sipx-users] Polycom IP HD 550 echo problem

  The two that really differ from site to site are the voice volume and input 
gain. It really depends on how far you are from the CO, the quality of the 
lines, etc.

Josh Patten Assistant Network Administrator Brazos County IT Dept. (979) 
361-4676
On 5/14/2010 8:34 AM, Nathaniel Watkins wrote:             The point Josh is 
trying to make – is the echo present calling polycom to polycom or, as Mike 
suggested, is the echo only present when a call hits the analog world?
   
  Two very different scenarios – each has addressed the issue.  In my 
experience, it’s really a matter of playing with the gateway settings to find 
the answer.  Here is a screen shot of what worked on one of our FXO gateways 
(AudioCodes).
   
    
   
      
From:[email protected][mailto:[email protected]]
   On Behalf Of Josh Patten
  Sent: Friday, May 14, 2010 9:23 AM
  To: [email protected]
  Subject: Re: [sipx-users] Polycom IP HD 550 echo problem
  
  
   
  Generally phones on the same LAN that have echo are victims of either bad 
cabling, bad switching equipment, lack of QoS, or a combination of all three. 
It's not an easy problem to solve.
  
Unfortunately echo is not something you can just "turn off". It something that 
can be minimized but not eliminated due to the nature of VoIP.
  
  
  Josh Patten  Assistant Network Administrator  Brazos County IT Dept.  (979) 
361-4676  
On 5/14/2010 6:12 AM, Jermaine Pinder wrote: 
    I have 10 Polycom HD 550 phones, latest boot-rom and firmware 3.23 running 
on sipx 4.2  that have “echo” problems sporadically. How can I turn off echo 
and any suggestions how to solve the problem?
   
  Thanks
  
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