i\'m working with 8051+codecs etc. problem i\'m facing is with the voice transmission, only one directional voice is there and on the bi-directional i\'m getting noise( infact the equialent noise, i mean, if i say something that is in the form of noise which u can make out that there is something is transmitted).
please help me out with this, whether this is possible r not, if so, how...please give me an hint.