I’m adding a second line to our home for a fax machine. This should be interesting. I’m buying a Linksys PAP2T-NA two line VOIP adapter. This will be used with our existing internet access along with http://www.teliax.com to add the line. The cost of the adapter is about $50 and the number from Teliax is $5 a month. I will let you know how it works when my adapter is delivered.