using class-map command (ASA)

how do I setup class-map in an ASA to give VOIP priority. I need step by step help

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BusbarSolutions ArchitectCommented:
then you can use the policy map to apply priority to the voice traffic, this ACL will be simple and apply the priority to all of the traffic (including |TFTP and CDP)
BusbarSolutions ArchitectCommented:
you will not find a step by step guide, but here is a summary:
configure a class map to match voip traffic (rtp, rtcp, SIP).
create a policy map to apply the BW requirements either policing or priority..etc
apply the service policy on the interface required.
dissolvedAuthor Commented:
i need to put priority on voice traffic from to
///I created an acl:

access-list phone_policy extended permit ip

///created a class map:
class-map voice_policy
match access-list phone_policy

Now what do I do?
dissolvedAuthor Commented:
what command would add priority? Can you tell me that?
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