If you have high speed internet you may want to try Voice-Over-Internet-Protocal (VOIP). I'm using Packet,
http://www.8x8.com/. Costs about $25/mo including all taxes, access fees, etc. Free long distance in US and Canada. All the extras are include: messageing, call waiting, three-way calling, caller ID, etc., etc. Put VOIP modem by your computer and use cordless phones throughout the house. There are many VOIP companies out there, just shop around. If I can help contact me:
mrhetzel@comcast.net.