We also wanted to get rid of the house land line. The one thing stopping us is hearing the ringing of the phone throughout the house withour carrying the cellphone. There were some posts here on this subject. Hopefully your cellphones are supported by these docking devices.
http://reviews.cnet.com/5208-7817-0.html?forumID=74&threadID=12790&messageID=157438
We have eliminated our land line phone in favor of cell phones, and it is working well for us except for one area. My wife does not like to wear her phone while in the house, but then when she is on one end of the house she cannot hear her cell phone ring. Is there a device which allows us to put our cell in a cradle and would ring loudly to be heard throughout the house?

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