No-swipe purchases are common for retail products, but I think you'd have a very difficult time getting a merchant bank or IPSP to agree to allow you to manually enter adult website membership sales from phone orders. The risk would be too high, they'd have no way of tracing the transaction back via IP address.

Also, our own experience is that magazine readers and web subscrubers are, for the most part, a different audience. Mag readers buy DVDs, but don't often subscribe to websites. And to some extent, the reverse is true... web membership subscribers seem to be less likely to buy DVDs.

There are IVR systems with voice recognition (the phone systems you're speaking of), but good ones are not inexpensive, and generally require dedicated hardware. When I used to build them for commercial clients, the basic software toolkit was in the $1500-2000 range, the voice cards around $1000, and the text-to-speech and voice recognition was another $1000-1500. This not including the high-end PC needed to drive the software, or the work to program the actual application in Visual Basic or one of the other programming languages. Prices may have come down a little, but the commercial grade software that's accurate enough to use is still pretty pricey, 'cause development costs were so high and the potential buyer base is pretty small.