VoIP over ADSL WAN Network Configuration. How?

Hi there!

I was wondering, how does the network configuration (OSI) of a WAN ADSL-link that includes VoIP and Data simultaneously looks like. I am sure there are many possibilities, but I am interested on how does Internet Providers usualy build it. Do they use one extra ATM-PVC for VoIP? Is there an extra PPPoE session for VoIP? Is there a ADSL "fast path" link needed for VoIP? Or nothing of above is needed, and all works fine on the same ATM-PVC, PPPoE session and on a interlieved ADSL-path? If so, how can you ensure VoIP-QoS working on TCP/IP with other concurrent data services?

Could anyone give me a help?

Thanks in advance!

Alexandre

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Alexandre Heil Franca
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