Solving Problems With VoIP Supply | What is FXS/FXO?
What is the difference between FXS and FXO? Learn the basic differences. This video will give you a brief description of FXS and FXO.
Learn More at: http://www.voipsupply.com/voip-buyers...
FXS and FXO - You Should Be in the Know: http://www.voipsupply.com/blog/voip-i...
Video by: Stephen Lopian