If you can find this forum using a search tool, you sure as heck can find a schematic diagram or idea for a PBX. It's so annoying seeing how people can post vague ideas "i want schematic for PaBX"
final year project + schematic + design + idea (and sometimes + "money") .... that's all that has been popping up here on this website recently. you want help, but you dont' know how to help yourself! GO THINK FOR YOURSELVES, FOR GOODNESS SAKES!
For a final year project a student should design his own project, not just assemble parts from the design of someone else. A little kid can assemble parts. A graduate in electronics can design circuits. Big difference.
Shakeel,
I speak English. I am sorry you don't know English.
hi. any1 here could give idea that could i connect a wireless switch with my existing PABX.
any alternative for
1) LCA110 (HOOK SWITCH)
2) L9711 (DTMF DETECTOR)