Nexus 7 as home phone?

[M1keC]

I'm seriously thinking of ditching my home phone line. The nexus 7 is great on Skype but before I pay for a phone mumber on Skype I want to check the alternatives.  I have looked at a few but it's hard to assess them before paying for their service - and none of them look that great.  Many are really for U.S. users so they don't seem to be suitable.
has anyone had experience of VOIP applications in UK other than Skype?
I already use my Nexus 7 as my radio alarm, personal tv and iPlayer in addition to all the usual stuff.  I really need the dock... please Google?  The alternatives on the market now are all portrait format and I want one that is landscape and uses the pogo pins.