ndmmxiaomayi SG Cable should have no problems. Adding another Singnet or Pacnet account will have no issues either. The only thing is make sure that you don't try to connect to both at the same time using the same computer.
caleb_chiang SG x2... You also can have more than 1 phone line, mobile line, cable tv, etc... and one more thing... like that also need to ask... You need a brain not SGF...