office telephone Rj9 cable to mobile headphones
I need to use my mobile headphones for an office phone ,
I probably need to buy a converter but it isn't available in my country , so ..
what I did was to cut the 3.5mm jack of my headphones and try to connect it with the rj9 cable..
I was able to get the sound working in my headphones but not the mic
when i try to connect the 2 grounds of the rj9 cable to the ground of the headphones , I hear a terrible whistle
so if any one can tell me the exact circuit between them , it will be great!
thanks in advance!
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