I am looking forward to design a simple small size pbx with following specifications:-
two extensions and one external telephone line.
now in the above case there are only 3 lines so using mt8816 like analog switch is not an economical thing to do ..is there any way by which switching can be done with using analog switch like using transistors etc...
iam using At89c52 controller.
two extensions and one external telephone line.
now in the above case there are only 3 lines so using mt8816 like analog switch is not an economical thing to do ..is there any way by which switching can be done with using analog switch like using transistors etc...
iam using At89c52 controller.