We've had a lot of success *not* using ip rtp priority, but using
LLQ/CBWFQ instead. This allows you to assign a strict priority queue
for voice traffic while giving you flexibility with the other classes of
non-voice traffic.
Frame relay fragmentation is generally not needed if your link speed is
over 768kbps, but it has been recommended to me that we use it even at
full T-1 speeds as long as our router can handle it with no problem.
However, I think I'm going to remove LFI from our routers as I just
can't see it being necessary and it doesn't appear to help very much.
HTH,
John (who *seriously* needs a caffeine IV drip right about now....)
>>> "Amit Gupta" 5/31/01 3:16:24 AM >>>
Hi Everybody,
I have configured the following parameters on the
serial interface for VoIP.The quality of the calls is
not very good during working hours you can feel some
delay/small interruptions while using it.
interface serial 0
ip tcp header-compression iphc-format
no ip mroute-cache
no fair-queue
ip rtp header-compression iphc-format
ip rtp priority 16384 16383 64
Could anybody suggest any other alternative to improve
the quality.
Will removing the compression help ?
Do I need to have something like Link Fragmentation
and Interleaving configured.
Thanks
Amit
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