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NetVanta QOS with Polycom Soundpoint

Posted on 2014-02-11
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Last Modified: 2014-02-12
Hello -

I'm need some assistance as this isn't what I normally work on, however circumstance has put me in a place where I'm tasked with fixing this.

We use a 3rd party VOIP vendor (Cloudstar)  They've not been able to provide the answers I'm asking here, so I'm just doing the best I can on my own.  We have Comcast internet service with a solid 75 MBit down and 15 MBit up.  We have a NetVanta 3120 that I just upgraded to the lastest firmware.  Our phone performance is awful and I'm not sure why, however we don't have the QOS configured as this is completely greek to me.

Does anyone know the steps I should take to configure the QOS on the NetVanta to make this phone system perform better?  We have about 15 phones, and we also use this internet connection for our computers / email, etc.  With everything connected, the speedtest still shows plenty of room (It tests around 40 down and 10 up).  Even with the abundance of bandwidth, the issues are pretty bad.

Help?  Thanks!

 - Tim
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Question by:TimFarren
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Phonebuff earned 500 total points
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Of your 15 phones how many are being used at the same time (active) talk paths outside the facility ?

What routers / firewalls do you have between the Comcast ID and your Adtran box ?

Are you looking for QOS in the building or on the WAN ?  On the WAN you are wasting your time, no ISP supports end to end QOS.

Have you used any tools to look at the network path.  Maybe a winMTR to see if the link is consistent ?  Or Wireshark to identify a packet storm on the LAN ?

With regards your specific question, need to know the release numbers on the Adtran gear, and since you updated recently you must be under maintenance,  so have yo called the support line ?  They have one of the better customer focused groups.

http://winmtr.net/
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