From my perspective it does not really matter what QOS you configure. Whenever you go over the public Internet then you have no control over you data at that point. Doing QOS at the end and not in the middle will not help to much. Anytime you go over the public Internet it is best effort. Hope this helps.
Mimckee is correct however there are some things you can do to give you the best chances of getting a quality call.
Queuing strategies and framentation are important to consider given the serialization delay of your internet link. You always want to make sure that you are de-queuing voice packets ahead of data packets, and that you chop up the data packets so your voice packets dont' wait to get dequeued while some 1500 byte data packet is being serialized. Always use ip precedence 5 on your voip dial peer as this may be respected by the unknown routers you hit. I don't know what kind of link you have to the ISP but here is a good link to check out for Qos ideas.
Queuing strategies will only help on the router where queuing strategies such as LLQ, WFQ, etc. have been configured -- namely, your access router into the Internet Service Provider. Unless you have some special SLA with your ISP, every router hop from there all the way to the other side will almost always be FIFO, so the ip precedence 5 packets will not be honored as such.
Also, fragmentation is really not effective at layer 3 with the IP protocol, since it can so easily break so many applications, like MS networking, HTTP, and others. And fragmentation at layer 2 (such as using frame relay or MLPPP) needs to be configured on both ends of the layer 2 link, which your ISP will not do without again some special SLA.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
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setting the clocks forward 1 hour from standard time during the summer
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