how important to have a static ip

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This web hosting review was started by manhal on 2009-12-30 01:45:12:

As I was discussing some plans and features with my internet provider, he mentioned this:

"..Standard static IP addresses allow you to upsell advanced business applications such web hosting and …."

Well I am not quite sure how web hosting can get benefits from static IP address, anyone knows more about this ?

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