No Sorenson clearly tells you that in term of service, that you only can have 1 VP per HOUSEHOLD.
Right, DSL can defintely have more than 1 IP at additional cost, or bundle package, however 1 IP address using router that shares connection, that is not possible, it wont work this way, you must have two ip address for sure.
You can get free D-Link VP from CSD and apply for one at
www.c-s-d.org
while you have the other VP-100 to use same time which at least 512/512k connection with two IP address.
DVC-1100 that use 802.1b which it may be sometime not give you good video quality in some case with certain routers. However I can quarantee you that you will get better video quality with 802.1g with any exisit VP thru LAN and G band Wireless Router. If you interest having in some wireless connection from router at some distant away. You can find one at
http://www.dlink.com/products/?sec=1&pid=333
Michael