Sonicwall QoS Site - To- Site VPN

getzjd used Ask the Experts™
We have 1 remote site of our company that runs on a Time Warner business class cable modem.  At this site we have a SonicWall running Tz170 Enhanced 3.23.0-6e with a site-to-site VPN connection to our HQ which has a Sonicwall Pro 3060 Enhanced  All of our other sites are AT&T T1 MPLS networks with managed COS.  The remote site is a vlan interface off our main Adtran core switch at HQ

We have a ShoreTel VoIP system and Layer 3 Adtran 1335 poe switches.

My question, how would I properly setup QoS on the sonicwalls to give the voice traffic priority?  The diffserve bit in shoretel is set to 184, which translates to DSCP 46 and is marked by the phones.  

This is a very dry 30 page document. ... is there anything in here that I may run into as a pitfall or can someone who has implemented this just give me a quick step by step?
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That document appears to cover i t- in particular Fig 1 "Site to site VPN over QOS capable networks", suggests taht VPN traffic *can* be controlled by QoS settings, enabling you to prioritise your VOIP traffic.

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