更新1:
my cable is a 8wired telephone cable and not a TV coaxial type, but wouldn't it be nice if we could have something like a repeater type box we could install just like the ones for a TV coaxial??
更新2:
How do we figure out the bandwidth of the additional cable??? Isn't that determined by the transmitter in the PABX from the utility company? I guess it takes a IT wiz to figure what the rating of that repeater will have to be, different ranges and all...