RE: VoIP QOS best practices

Yes, but most companies do not want to upgrade the access link to
unneeded levels just to ensure that VOIP never has contention. It is on
the access link where QOS matters, ingress and egress. That is where we
(AT&T) have deployed it and where it makes sense. It's not about pitting
one customer's traffic against another's across the core. The core is
over-provisioned for high bandwidth and simplicity. It is pitting one
customers applications against their other applications. It is about
large packets (1500 byte) vs. small VOIP packets. It is about getting
the VOIP out the door while less sensitive applications wait in queue if
that is what is required on the access link. It is usually about T1 and
below.

Michelle

Michelle Truman CCIE # 8098
Principal Technical Consultant
AT&T Solutions Center
mailto:mtruman@att.com
VO: 651-998-0949 (NEW NUMBER)
w 612-376-5137