ways to classify voice traffic

From: Jian Gu (guxiaojian@gmail.com)
Date: Fri Oct 21 2005 - 14:19:07 GMT-3

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Hi, all,

How do you typically classify voice data traffic? I can think of the
following ways:

1.match ip rtp 16384 16383

2. match ip acces-group 100
access-list 100 permit udp any any range 16384 32768

3.match cos 5, ip prec 5, dscp (routing protocols may use the same cos,
prec, dscp value too, not sure this is the right way to classify voice)

Any other way to classify voice?

How about voice control traffic?

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