need a phone splitter that will split the phone lines form the multi line jack into: line 1&2 and line 3&4 why can't i find this? i really don't wanna have to rewire my phone jacks using the 2 rj45 females. the one i have now has the rj45 multi line in the top and the computer Ethernet in the bottom. problem is, all my phones require a line 1&2 connecting and a line 3&4 connection. help?