Just read a reply posted on the Slingshot forums about this.
Quote:
as said, its not as neccessary due to no POTS voice being on the line.http://forums.slingshot.co.nz/viewtopic.php?p=7961#7961
who pays? well if your house wiring has issues out of our control - then you would have to.
we do however have Man in a Van which can resolve most techincal issues if need be
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Scott Hoogerbrug
Marketing
www.slingshot.co.nz